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Science & Space

Launches, missions and tests of the last twelve months, from ISRO, DRDO and the research bodies.

These questions change through the year. A question stays for twelve months; the story behind it stays in the weekly digest.

Read the current-affairs digests →

Group: Current AffairsUnder NTA's headingGeneral Knowledge, Current Affairs

The area names are NTA's. The chapters inside them are EduFarming's own division, not NTA's.

The questions

Practise this chapter

69 questions, each with its answer and a worked explanation. Do them timed, or read through.

Question 1

MediumOriginal question

Which launch vehicle placed EOS-05 in orbit on 4 September 2026, and from where?

  1. APSLV-C62, from the First Launch Pad at Sriharikota
  2. BLVM3-M6, from the Second Launch Pad at Satish Dhawan Space Centre, SHAR
  3. CGSLV-F17, from the Second Launch Pad at Satish Dhawan Space Centre, SHAR
  4. DSSLV-D4, from Satish Dhawan Space Centre, SHAR

Correct answer: C

Explanation

  1. GSLV-F17 was the nineteenth flight of the Geosynchronous Satellite Launch Vehicle, and it flew from the Second Launch Pad

  2. It placed EOS-05 into a sub-geosynchronous transfer orbit rather than directly into its final one

Concept
The GSLV-F17 mission
Typical time
50 seconds
Written from
isro.gov.in

Question 2

MediumOriginal question

What does ISRO describe EOS-05 as being the first of for India?

  1. AThe first satellite built entirely by private industry
  2. BThe first satellite placed in a polar sun-synchronous orbit
  3. CThe first satellite to carry a cryogenic upper stage
  4. DThe first imaging satellite from geosynchronous orbit

Correct answer: D

Explanation

  1. EOS-05 is described as India's first ever imaging satellite from geosynchronous orbit

  2. Height is the point of it: a camera that stays over the same longitude can watch one region continuously, where a low-orbit satellite has to come round again

  3. India has been launching imaging satellites into polar sun-synchronous orbits for decades, so that is the thing this is not

Concept
EOS-05 and geosynchronous imaging
Typical time
50 seconds
Written from
isro.gov.in

Question 3

EasyOriginal question

In July 2026 an Indian private company put a rocket into orbit from Indian soil for the first time. Which company, and which rocket?

  1. ASkyroot Aerospace, with Vikram-1
  2. BAgnikul Cosmos, with Agnibaan
  3. CPixxel, with Firefly
  4. DBellatrix Aerospace, with Rudra

Correct answer: A

Explanation

  1. Skyroot Aerospace's Vikram-1 lifted off from Sriharikota on 18 July 2026 and injected the satellites SCOPE and Grahaa into low Earth orbit

  2. It reached orbit on the first attempt, which is what the announcement singles out

Concept
India's first private orbital launch
Typical time
40 seconds
Written from
isro.gov.in

Question 4

MediumOriginal question

NISAR, which completed a year in orbit in July 2026, is a joint mission between ISRO and which agency — and what is distinctive about its radar?

  1. AESA; it carries radar in two bands, C and X
  2. BNASA; it carries radar in two bands, L and S
  3. CJAXA; it carries a single L-band radar
  4. DRoscosmos; it carries a single S-band radar

Correct answer: B

Explanation

  1. NISAR stands for NASA-ISRO Synthetic Aperture Radar, and it was launched by GSLV-F16 on 30 July 2025

  2. Carrying two bands is what lets one satellite serve both ends of the job: the longer wavelength reads ice and solid earth, the shorter reads crops, soil moisture and biomass

Concept
The NISAR mission
Typical time
55 seconds
Written from
isro.gov.in

Question 5

MediumOriginal question

Where did ISRO hot-test the CE20 cryogenic engine for the LVM3 M7 mission on 9 September 2026?

  1. ASatish Dhawan Space Centre, Sriharikota
  2. BVikram Sarabhai Space Centre, Thiruvananthapuram
  3. CU R Rao Satellite Centre, Bengaluru
  4. DISRO Propulsion Complex, Mahendragiri

Correct answer: D

Explanation

  1. The flight acceptance hot test was run at the Main Engine and stage Test facility (MET) of the ISRO Propulsion Complex (IPRC), Mahendragiri.

  2. Every mission's cryogenic engine goes through a hot test like this before it is accepted for flight.

  3. The LVM3 M7 mission is scheduled for the fourth quarter of 2026.

Concept
Where ISRO tests its engines
Typical time
35 seconds
Written from
isro.gov.in

Question 6

HardOriginal question

The CE20 engine that ISRO hot-tested in September 2026 powers which part of the LVM3 launch vehicle?

  1. AThe C32 cryogenic upper stage
  2. BThe S200 solid strap-on boosters
  3. CThe L110 liquid core stage
  4. DThe crew escape system

Correct answer: A

Explanation

  1. ISRO calls the CE20 an upper stage engine, and after the test it is assembled into the C32 flight stage.

  2. Future LVM3 missions plan to run the C32 stage with the CE20 uprated to 22 tonnes of thrust, which is why this test was run at 22t.

  3. The same test also demonstrated a LOX tank pressurisation module meant for the C32 stages of Gaganyaan.

Concept
The CE20 engine's place in LVM3
Typical time
50 seconds
Written from
isro.gov.in

Question 7

EasyOriginal question

'Kusha', which DRDO flight-tested for the first time on 23 July 2026, is what kind of missile?

  1. AA short-range anti-tank guided missile
  2. BAn intercontinental ballistic missile
  3. CA long-range surface-to-air missile
  4. DA submarine-launched cruise missile

Correct answer: C

Explanation

  1. DRDO conducted the maiden flight test of the Kusha long-range surface-to-air missile from APJ Abdul Kalam Island, off the coast of Odisha.

  2. It intercepted an electronic target simulating a high-speed, high-altitude aerial threat.

  3. It is built to defend against fighter jets, missiles, unmanned aerial vehicles and large aircraft, a class of system the release says only a handful of nations have.

Concept
The Kusha missile
Typical time
30 seconds
Written from
pib.gov.in

Question 8

EasyOriginal question

Which satellite did LVM3-M5 launch on 2 November 2025?

  1. AEOS-05
  2. BNISAR
  3. CCMS-03
  4. DGSAT-20

Correct answer: C

Explanation

  1. LVM3-M5 placed the CMS-03 communication satellite in orbit.

  2. GSAT-20 was launched abroad, on a SpaceX Falcon 9, in 2024.

Concept
LVM3-M5 payload
Typical time
40 seconds
Written from
isro.gov.in

Question 9

MediumOriginal question

What record does CMS-03, launched in November 2025, hold?

  1. AHeaviest communication satellite launched to GTO from Indian soil
  2. BFirst Indian satellite to reach the Moon
  3. CHeaviest satellite ever built by any country
  4. DFirst satellite launched by a private Indian company

Correct answer: A

Explanation

  1. At about 4,400 kg, CMS-03 is the heaviest communication satellite sent to GTO from India.

  2. The qualifier matters: heavier Indian satellites have been launched from abroad.

Worth noting

'From Indian soil' is the whole claim. Drop it and the record is false.

Concept
CMS-03's record
Typical time
50 seconds
Written from
isro.gov.in

Question 10

HardOriginal question

Besides launching CMS-03, what did the LVM3-M5 mission demonstrate for the first time?

  1. ARecovery of the first stage after landing
  2. BA restart in space of the C25 cryogenic upper stage
  3. CDocking of two satellites in orbit
  4. DA crewed flight to low Earth orbit

Correct answer: B

Explanation

  1. LVM3-M5 carried out the first in-space restart of the C25 cryogenic stage.

  2. Docking was shown by the SpaDeX mission, launched on PSLV in December 2024.

Concept
LVM3-M5 technology demonstration
Typical time
65 seconds
Written from
isro.gov.in

Question 11

MediumOriginal question

LVM3's flight before LVM3-M5 had launched which mission?

  1. AAditya-L1
  2. BMangalyaan
  3. CSpaDeX
  4. DChandrayaan-3

Correct answer: D

Explanation

  1. ISRO notes that LVM3's previous mission launched Chandrayaan-3, which landed near the lunar south pole.

  2. Aditya-L1 and SpaDeX flew on PSLV, and Mangalyaan on PSLV in 2013.

Concept
LVM3 flight history
Typical time
50 seconds
Written from
isro.gov.in

Question 12

EasyOriginal question

Which satellite did LVM3-M6 launch on 24 December 2025?

  1. ACMS-03
  2. BBlueBird Block-2
  3. COneWeb India-2
  4. DEOS-N1

Correct answer: B

Explanation

  1. LVM3-M6 carried the BlueBird Block-2 communication satellite.

  2. CMS-03 was the previous LVM3 flight, M5, in November 2025.

Concept
LVM3-M6 payload
Typical time
40 seconds
Written from
pib.gov.in

Question 13

MediumOriginal question

What record did BlueBird Block-2 set when LVM3-M6 launched it?

  1. AFirst Indian satellite in geostationary orbit
  2. BHeaviest communication satellite sent to GTO from India
  3. CFirst satellite launched from the Second Launch Pad
  4. DHeaviest satellite ever carried by an Indian launch vehicle

Correct answer: D

Explanation

  1. At about 6,100 kg, BlueBird Block-2 is the heaviest payload ever carried by an Indian rocket, to low Earth orbit.

  2. The GTO record belongs to CMS-03, a lighter satellite sent to a much higher orbit.

Worth noting

Two LVM3 records in seven weeks: heaviest to GTO (CMS-03) and heaviest overall, to LEO (BlueBird Block-2). Match the orbit to the satellite.

Concept
BlueBird Block-2 record
Typical time
50 seconds
Written from
pib.gov.in

Question 14

HardOriginal question

Into which orbit did LVM3-M6 place BlueBird Block-2?

  1. ALow Earth orbit
  2. BGeosynchronous transfer orbit
  3. CSun-synchronous polar orbit
  4. DA halo orbit around L1

Correct answer: A

Explanation

  1. BlueBird Block-2 was placed in low Earth orbit.

  2. A halo orbit around L1 is where Aditya-L1 sits.

Concept
Orbit of BlueBird Block-2
Typical time
65 seconds
Written from
pib.gov.in

Question 15

EasyOriginal question

What was the main satellite on PSLV-C62, launched on 12 January 2026?

  1. AEOS-09
  2. BCMS-03
  3. CEOS-N1
  4. DBlueBird Block-2

Correct answer: C

Explanation

  1. PSLV-C62 carried the EOS-N1 earth-observation satellite and 15 co-passengers.

  2. EOS-09 was lost on PSLV-C61 in May 2025.

Concept
PSLV-C62 payload
Typical time
40 seconds
Written from
isro.gov.in

Question 16

MediumOriginal question

Where in the flight did PSLV-C62 encounter its anomaly?

  1. AAt the end of the third stage (PS3)
  2. BAt lift-off, in the strap-on motors
  3. CIn the first stage (PS1)
  4. DAfter satellite separation

Correct answer: A

Explanation

  1. ISRO reported an anomaly at the end of the PS3 stage.

  2. PS3 is a solid-fuel stage; the PSLV has four stages in all.

Concept
PSLV-C62 anomaly
Typical time
50 seconds
Written from
isro.gov.in

Question 17

HardOriginal question

PSLV-C62 was which flight of the PSLV?

  1. AThe 62nd
  2. BThe 60th
  3. CThe 101st
  4. DThe 64th

Correct answer: D

Explanation

  1. ISRO describes PSLV-C62 as the 64th flight of the PSLV.

  2. The 'C' numbers are not flight counts, so C62 is not the 62nd flight; 101st was ISRO's launch count at PSLV-C61.

Worth noting

A rocket's serial number and its flight count are different things. Only the source says which flight it was.

Concept
Counting PSLV flights
Typical time
65 seconds
Written from
isro.gov.in

Question 18

MediumOriginal question

Solid Fuel Ducted Ramjet technology, demonstrated by DRDO in February 2026, is mainly for developing what?

  1. AReusable launch vehicles
  2. BLong-range air-to-air missiles
  3. CSubmarine propulsion
  4. DCrewed space capsules

Correct answer: B

Explanation

  1. DRDO says SFDR enables long-range air-to-air missiles.

  2. An air-breathing motor keeps the missile fast late in flight, when a pure rocket would have burnt out.

Concept
Purpose of SFDR
Typical time
50 seconds
Written from
pib.gov.in

Question 19

EasyOriginal question

From where did DRDO demonstrate the Solid Fuel Ducted Ramjet in February 2026?

  1. ASatish Dhawan Space Centre, Sriharikota
  2. BPokhran Field Firing Range, Rajasthan
  3. CThe Integrated Test Range, Chandipur, Odisha
  4. DTBRL, Chandigarh

Correct answer: C

Explanation

  1. The test was flown from ITR Chandipur, off the Odisha coast.

  2. TBRL Chandigarh is where the Gaganyaan parachute was tested that month.

Concept
SFDR test site
Typical time
40 seconds
Written from
pib.gov.in

Question 20

HardOriginal question

What makes a ramjet different from a conventional rocket motor?

  1. AIt runs on liquid hydrogen alone
  2. BIt takes oxygen from the air instead of carrying all its oxidiser
  3. CIt can start from zero speed without a booster
  4. DIt works only outside the atmosphere

Correct answer: B

Explanation

  1. A ramjet is air-breathing: it compresses incoming air by its own speed and burns fuel in it.

  2. That is why it needs a booster first — in the February test, a ground booster took it to the required Mach number.

Concept
How a ramjet works
Typical time
65 seconds
Written from
pib.gov.in

Question 21

MediumOriginal question

Where was the Gaganyaan drogue parachute qualification test of February 2026 carried out?

  1. AOn the Rail Track Rocket Sled at TBRL, Chandigarh
  2. BAt the Integrated Test Range, Chandipur
  3. CIn a wind tunnel at IISc, Bengaluru
  4. DAt sea, off Sriharikota

Correct answer: A

Explanation

  1. The test used the Rail Track Rocket Sled facility of DRDO's TBRL in Chandigarh.

  2. A rocket sled lets a parachute be loaded at high speed on the ground.

Concept
Gaganyaan parachute test
Typical time
50 seconds
Written from
pib.gov.in

Question 22

HardOriginal question

What does the drogue parachute do in the Gaganyaan crew module's descent?

  1. ACarries the module all the way to splashdown alone
  2. BSeparates the crew module from the rocket
  3. CSlows and stabilises the module before the main parachutes open
  4. DProtects the module from heat during re-entry

Correct answer: C

Explanation

  1. Drogues are the first parachutes out: they slow and steady the module so the main parachutes can open safely.

  2. Heat protection is the job of the heat shield, not a parachute.

Concept
Role of the drogue parachute
Typical time
65 seconds
Written from
pib.gov.in

Question 23

EasyOriginal question

Which organisation developed India's indigenous Cell Broadcast disaster-alert system tested in April 2026?

  1. AISRO
  2. BDRDO
  3. CBSNL
  4. DC-DOT

Correct answer: D

Explanation

  1. The Centre for Development of Telematics (C-DOT), the Department of Telecommunications' R&D centre, built it.

  2. C-DOT also built SACHET, the SMS-based alert system.

Concept
Cell Broadcast alerts
Typical time
40 seconds
Written from
pib.gov.in

Question 24

MediumOriginal question

What does Cell Broadcast do that SMS alerts do not?

  1. AWorks only on smartphones with an app
  2. BSends alerts only in English
  3. CReaches every phone in an area at the same moment
  4. DCharges the user per message

Correct answer: C

Explanation

  1. Cell Broadcast transmits to all devices in a defined area simultaneously, giving near real-time delivery.

  2. SMS goes number by number, which is slower when every second counts, as in a tsunami.

Concept
Cell Broadcast versus SMS
Typical time
50 seconds
Written from
pib.gov.in

Question 25

HardOriginal question

On which standard is SACHET, India's Integrated Alert System, based?

  1. AThe Global Positioning System
  2. BThe Common Alerting Protocol recommended by the ITU
  3. CThe NavIC messaging service alone
  4. DThe WMO's Global Telecommunication System

Correct answer: B

Explanation

  1. SACHET is built on the Common Alerting Protocol, which the International Telecommunication Union recommends.

  2. It runs in all 36 states and union territories and has sent over 134 billion alerts.

Concept
SACHET's standard
Typical time
65 seconds
Written from
pib.gov.in

Question 26

MediumOriginal question

According to the Department of Space in July 2026, how many launch-vehicle missions did India complete successfully from July 2023 to June 2026?

  1. A9
  2. B11
  3. C12
  4. D100

Correct answer: C

Explanation

  1. India completed 12 launch-vehicle missions, carrying 11 national and 9 foreign satellites.

  2. 100 is the count of launches from Sriharikota, a milestone reached in the same period.

Concept
India's launch record, 2023–26
Typical time
50 seconds
Written from
pib.gov.in

Question 27

EasyOriginal question

Which of these is NOT one of India's four operational launch vehicles?

  1. APSLV
  2. BSSLV
  3. CGSLV Mk III
  4. DASLV

Correct answer: D

Explanation

  1. The four are PSLV, GSLV, GSLV Mk III (LVM3) and SSLV.

  2. The ASLV was an older vehicle, retired in the 1990s.

Concept
India's launch vehicles
Typical time
40 seconds
Written from
pib.gov.in

Question 28

HardOriginal question

According to the Department of Space, the SpaDeX mission made India which country to demonstrate docking and undocking in space?

  1. AThe fourth
  2. BThe third
  3. CThe fifth
  4. DThe second

Correct answer: A

Explanation

  1. The Department of Space says SpaDeX made India the fourth country to demonstrate docking and undocking.

  2. The Department of Space counts the United States, Russia and China as the earlier three.

Concept
SpaDeX and docking
Typical time
65 seconds
Written from
pib.gov.in

Question 29

MediumOriginal question

Where was the European Girls' Mathematical Olympiad 2026 held, at which India won its first gold?

  1. AShanghai, China
  2. BTashkent, Uzbekistan
  3. CVilnius, Lithuania
  4. DBordeaux, France

Correct answer: D

Explanation

  1. EGMO 2026 was held in Bordeaux, France, from 9 to 15 April.

  2. India placed 6th of 67 countries.

Concept
EGMO 2026 venue
Typical time
50 seconds
Written from
pib.gov.in

Question 30

EasyOriginal question

Who won India's first-ever gold at the European Girls' Mathematical Olympiad, in 2026?

  1. AShreya Shantanu Mundhada
  2. BSanjana Philo Chacko
  3. CShivani Barath Kumar
  4. DShrimoyee Bera

Correct answer: A

Explanation

  1. Shreya Shantanu Mundhada of Mumbai won gold.

  2. Sanjana Philo Chacko won silver and Shivani Barath Kumar bronze.

Concept
First EGMO gold
Typical time
40 seconds
Written from
pib.gov.in

Question 31

MediumOriginal question

The country's first commercial Mini/Micro-LED display facility, approved in May 2026, is based on which compound semiconductor?

  1. ASilicon carbide
  2. BGallium arsenide
  3. CIndium phosphide
  4. DGallium nitride

Correct answer: D

Explanation

  1. The Crystal Matrix facility at Dholera uses GaN (gallium nitride) technology.

  2. It will also offer GaN foundry services on 6-inch wafers.

Concept
GaN display unit
Typical time
50 seconds
Written from
pib.gov.in

Question 32

EasyOriginal question

In which state are both semiconductor projects approved in May 2026 located?

  1. AGujarat
  2. BAssam
  3. CUttar Pradesh
  4. DOdisha

Correct answer: A

Explanation

  1. Both are in Gujarat: one at Dholera and one at Surat.

  2. They are under the India Semiconductor Mission.

Concept
Semiconductor projects, May 2026
Typical time
40 seconds
Written from
pib.gov.in

Question 33

MediumOriginal question

What is the outlay of Semicon 2.0, approved in July 2026?

  1. A₹3,936 crore
  2. B₹62,500 crore
  3. C₹76,000 crore
  4. D₹1,27,500 crore

Correct answer: D

Explanation

  1. Semicon 2.0 has an outlay of ₹1,27,500 crore.

  2. ₹76,000 crore was the first phase; ₹62,500 crore is the Mobile Phone Manufacturing Scheme.

Concept
Semicon 2.0 outlay
Typical time
50 seconds
Written from
pib.gov.in

Question 34

EasyOriginal question

Which ministry runs Semicon 2.0?

  1. AScience and Technology
  2. BElectronics and Information Technology
  3. CCommerce and Industry
  4. DHeavy Industries

Correct answer: B

Explanation

  1. Semicon 2.0 is a MeitY programme.

  2. It builds on the India Semiconductor Mission, Semicon 1.0.

Concept
Semicon 2.0 ministry
Typical time
40 seconds
Written from
pib.gov.in

Question 35

MediumOriginal question

Which is the first of the six pillars of Semicon 2.0?

  1. AChip design
  2. BWafer fabrication
  3. CPackaging
  4. DRare earth mining

Correct answer: A

Explanation

  1. The first pillar is design, building on about 105 chip-design start-ups.

  2. The second is machines and materials.

Concept
Semicon 2.0 pillars
Typical time
50 seconds
Written from
pib.gov.in

Question 36

MediumOriginal question

Where was the 56th International Physics Olympiad of 2026 held?

  1. AShanghai, China
  2. BParis, France
  3. CMumbai, India
  4. DBucaramanga, Colombia

Correct answer: D

Explanation

  1. IPhO 2026 was held in Bucaramanga, Colombia.

  2. Shanghai hosted the Mathematical Olympiad the same month.

Concept
IPhO 2026 venue
Typical time
50 seconds
Written from
pib.gov.in

Question 37

EasyOriginal question

How many gold medals did India's five-member team win at the International Physics Olympiad 2026?

  1. ATwo
  2. BThree
  3. CFive
  4. DOne

Correct answer: C

Explanation

  1. All five members won gold.

  2. At the Mathematical Olympiad the same month India won two golds.

Concept
IPhO 2026 golds
Typical time
40 seconds
Written from
pib.gov.in

Question 38

MediumOriginal question

What was India's medal haul at the International Mathematical Olympiad 2026?

  1. A5 gold
  2. B3 gold and 3 silver
  3. C1 gold and 5 bronze
  4. D2 gold and 4 silver

Correct answer: D

Explanation

  1. India won 2 golds and 4 silvers in Shanghai.

  2. Five golds was the Physics Olympiad the same month.

Concept
IMO 2026 medals
Typical time
50 seconds
Written from
pib.gov.in

Question 39

EasyOriginal question

Where was the 67th International Mathematical Olympiad held in 2026?

  1. ABucaramanga, Colombia
  2. BShanghai, China
  3. CBath, United Kingdom
  4. DOslo, Norway

Correct answer: B

Explanation

  1. IMO 2026 was held in Shanghai, China.

  2. Bucaramanga hosted the Physics Olympiad.

Concept
IMO 2026 venue
Typical time
40 seconds
Written from
pib.gov.in

Question 40

HardOriginal question

What is India's best-ever team rank at the International Mathematical Olympiad?

  1. A7th, in 2026
  2. B1st, in 2019
  3. C4th, in 2024
  4. D10th, in 1989

Correct answer: C

Explanation

  1. India's best is 4th place, at IMO 2024.

  2. In 2026 India finished 7th, as it also did in 1998, 2001 and 2025.

Concept
India's best IMO rank
Typical time
65 seconds
Written from
pib.gov.in

Question 41

MediumOriginal question

Where was the 58th International Chemistry Olympiad held in July 2026?

  1. ATashkent, Uzbekistan
  2. BVilnius, Lithuania
  3. CShanghai, China
  4. DRiyadh, Saudi Arabia

Correct answer: A

Explanation

  1. IChO 2026 was held in Tashkent.

  2. Vilnius hosted the Biology Olympiad, and Riyadh the Chemistry Olympiad of 2024.

Concept
IChO 2026 venue
Typical time
50 seconds
Written from
pib.gov.in

Question 42

EasyOriginal question

What was notable about India's result at the International Chemistry Olympiad 2026?

  1. AIndia won no medals
  2. BIndia hosted the Olympiad
  3. CAll four students won gold, a first for India
  4. DOne student won a special prize only

Correct answer: C

Explanation

  1. All four won gold, India's first-ever all-gold haul at IChO.

  2. India shared first place in the country tally.

Concept
IChO 2026 result
Typical time
40 seconds
Written from
pib.gov.in

Question 43

MediumOriginal question

What did India's team win at the 37th International Biology Olympiad in July 2026?

  1. A1 gold and 3 silver
  2. B4 gold
  3. C2 gold and 2 bronze
  4. D3 silver only

Correct answer: A

Explanation

  1. All four students won medals: 1 gold and 3 silver, in Vilnius.

  2. Four golds was the Chemistry Olympiad the same week.

Concept
IBO 2026 medals
Typical time
50 seconds
Written from
pib.gov.in

Question 44

EasyOriginal question

National Space Day, observed on 23 August, marks which event?

  1. AThe launch of Aryabhata in 1975
  2. BChandrayaan-3's landing on the Moon in 2023
  3. CMangalyaan reaching Mars orbit in 2014
  4. DThe founding of ISRO in 1969

Correct answer: B

Explanation

  1. Chandrayaan-3's lander touched down near the lunar south pole on 23 August 2023.

  2. 2026 was the 3rd National Space Day, held at Ahmedabad.

Concept
National Space Day
Typical time
40 seconds
Written from
isro.gov.in

Question 45

MediumOriginal question

Where was the inaugural event of the 3rd National Space Day held in August 2026?

  1. ABengaluru
  2. BSriharikota
  3. CThiruvananthapuram
  4. DAhmedabad

Correct answer: D

Explanation

  1. It was held at Ahmedabad, home of ISRO's Space Applications Centre.

  2. Bengaluru is ISRO's headquarters.

Concept
National Space Day 2026 venue
Typical time
50 seconds
Written from
isro.gov.in

Question 46

MediumOriginal question

Who was ISRO's Chairman at the time of the 3rd National Space Day in August 2026?

  1. AS. Somanath
  2. BDr V. Narayanan
  3. CK. Sivan
  4. DA. S. Kiran Kumar

Correct answer: B

Explanation

  1. Dr V. Narayanan, Secretary of the Department of Space and ISRO Chairman, presided.

  2. S. Somanath and K. Sivan were earlier chairmen.

Concept
ISRO Chairman, 2026
Typical time
50 seconds
Written from
isro.gov.in

Question 47

MediumOriginal question

ORV Sagar Manthan, launched in September 2026, was built for which institution?

  1. AThe Indian Navy
  2. BThe Indian Coast Guard
  3. CThe Geological Survey of India
  4. DThe National Centre for Polar and Ocean Research

Correct answer: D

Explanation

  1. GRSE built the vessel for NCPOR, under the Ministry of Earth Sciences.

  2. GRSE is a defence shipyard, but this ship is for ocean research.

Concept
ORV Sagar Manthan
Typical time
50 seconds
Written from
pib.gov.in

Question 48

EasyOriginal question

Maitri and Bharati are India's research stations in which region?

  1. AAntarctica
  2. BThe Arctic
  3. CThe Himalaya
  4. DThe Andaman Sea

Correct answer: A

Explanation

  1. Maitri and Bharati are in Antarctica, run by NCPOR, Goa.

  2. India's Arctic station is Himadri, at Ny-Ålesund in Svalbard.

Concept
India's polar stations
Typical time
40 seconds
Written from
pib.gov.in

Question 49

MediumOriginal question

HTT-40, three of which HAL delivered to the IAF in September 2026, is what kind of aircraft?

  1. AA fighter
  2. BA transport aircraft
  3. CA basic trainer
  4. DA helicopter

Correct answer: C

Explanation

  1. HTT-40 is HAL's basic trainer for new pilots.

  2. The helicopters in the same handover were Dhruv NG, for Pawan Hans.

Concept
HTT-40
Typical time
50 seconds
Written from
pib.gov.in

Question 50

EasyOriginal question

What name was given to the landing site of Chandrayaan-3's Vikram lander?

  1. ATiranga point
  2. BShiv Shakti point
  3. CJawahar point
  4. DVikram Sarabhai point

Correct answer: B

Explanation

  1. The Chandrayaan-3 landing site is the Shiv Shakti point (Statio Shiv Shakti).

  2. The spot where Chandrayaan-2's lander crashed was named the Tiranga point.

Concept
Shiv Shakti point
Typical time
40 seconds
Written from
isro.gov.in

Question 51

EasyOriginal question

National Space Day, marking Chandrayaan-3's landing, is observed on which date?

  1. A14 July
  2. B12 August
  3. C15 August
  4. D23 August

Correct answer: D

Explanation

  1. Chandrayaan-3 landed on 23 August 2023, and the day was declared National Space Day.

  2. 14 July 2023 was the launch date.

Concept
National Space Day
Typical time
40 seconds
Written from
isro.gov.in

Question 52

MediumOriginal question

What did ISRO's TV-D1 mission of October 2023 test for the Gaganyaan programme?

  1. AThe cryogenic upper stage
  2. BThe crew escape system
  3. CA reusable landing
  4. DSpace docking

Correct answer: B

Explanation

  1. TV-D1 was an in-flight abort test of Gaganyaan's crew escape system.

  2. The crew module was recovered from the Bay of Bengal.

Concept
Gaganyaan TV-D1
Typical time
50 seconds
Written from
pib.gov.in

Question 53

MediumOriginal question

Which department implements the National Quantum Mission approved in April 2023?

  1. AThe Department of Space
  2. BThe Department of Science and Technology
  3. CThe Ministry of Electronics and IT
  4. DThe Department of Atomic Energy

Correct answer: B

Explanation

  1. The mission is implemented by the Department of Science and Technology (DST).

  2. Its outlay is ₹6,003.65 crore over 2023-24 to 2030-31.

Concept
National Quantum Mission
Typical time
50 seconds
Written from
pib.gov.in

Question 54

MediumOriginal question

Around which point does India's solar observatory Aditya-L1 orbit?

  1. AThe Earth–Moon Lagrange point L2
  2. BA geostationary point over India
  3. CThe Sun–Earth Lagrange point L1
  4. DThe Moon's south pole

Correct answer: C

Explanation

  1. Aditya-L1 is in a halo orbit around the Sun–Earth L1 point, about 1.5 million km from Earth.

  2. It reached that orbit on 6 January 2024.

Concept
Aditya-L1 orbit
Typical time
50 seconds
Written from
isro.gov.in

Question 55

MediumOriginal question

XPoSat, launched on 1 January 2024, studies which property of X-rays from celestial sources?

  1. APolarisation
  2. BRefraction
  3. CDoppler shift only
  4. DAbsorption by the ozone layer

Correct answer: A

Explanation

  1. XPoSat is an X-ray Polarimeter Satellite: it measures the polarisation of X-rays.

  2. Its payloads are POLIX and XSPECT.

Concept
XPoSat
Typical time
50 seconds
Written from
isro.gov.in

Question 56

MediumOriginal question

Mission Divyastra, in March 2024, was the first flight test of which missile with MIRV technology?

  1. ABrahMos
  2. BAgni-5
  3. CPrithvi-II
  4. DAgni Prime

Correct answer: B

Explanation

  1. Mission Divyastra tested Agni-5 with Multiple Independently Targetable Re-entry Vehicles.

  2. It was flown from Dr APJ Abdul Kalam Island in Odisha.

Concept
Mission Divyastra
Typical time
50 seconds
Written from
pib.gov.in

Question 57

MediumOriginal question

What outlay did the Cabinet approve for the IndiaAI Mission in March 2024?

  1. A₹2,104.06 crore
  2. B₹6,003.65 crore
  3. C₹10,371.92 crore
  4. D₹76,000 crore

Correct answer: C

Explanation

  1. The IndiaAI Mission's outlay is ₹10,371.92 crore.

  2. ₹6,003.65 crore is the National Quantum Mission; ₹76,000 crore was the 2021 semiconductor programme.

Concept
IndiaAI Mission
Typical time
50 seconds
Written from
pib.gov.in

Question 58

MediumOriginal question

What is the Chandrayaan-4 mission, approved in September 2024, designed to do?

  1. ABring lunar samples back to Earth
  2. BOrbit Venus
  3. CLand a crew on the Moon
  4. DStudy the Sun from L1

Correct answer: A

Explanation

  1. Chandrayaan-4 is to land on the Moon, collect samples and return them to Earth.

  2. An Indian crewed Moon landing is planned for 2040; the Sun is studied by Aditya-L1.

Concept
Chandrayaan-4
Typical time
50 seconds
Written from
static.pib.gov.in

Question 59

HardOriginal question

By which year does India aim to have an operational Bharatiya Antariksh Station?

  1. A2028
  2. B2030
  3. C2035
  4. D2040

Correct answer: C

Explanation

  1. The goal is an operational Bharatiya Antariksh Station by 2035.

  2. Its first module, BAS-1, is due by 2028; a crewed Moon landing is aimed for 2040.

Concept
Bharatiya Antariksh Station
Typical time
65 seconds
Written from
static.pib.gov.in

Question 60

EasyOriginal question

With the SpaDeX docking of January 2025, India became which country in the world to dock spacecraft in orbit?

  1. AThe third
  2. BThe fourth
  3. CThe second
  4. DThe fifth

Correct answer: B

Explanation

  1. India became the fourth country to achieve space docking.

  2. The United States, Russia and China had done it before.

Concept
SpaDeX docking
Typical time
40 seconds
Written from
static.pib.gov.in

Question 61

MediumOriginal question

Which mission was the 100th launch from Sriharikota, in January 2025?

  1. AGSLV-F15 / NVS-02
  2. BLVM3-M4 / Chandrayaan-3
  3. CPSLV-C60 / SpaDeX
  4. DGSLV-F16 / NISAR

Correct answer: A

Explanation

  1. GSLV-F15, carrying NVS-02, was the 100th launch from Sriharikota, on 29 January 2025.

  2. PSLV-C60 carried SpaDeX a month earlier; GSLV-F16 carried NISAR in July 2025.

Concept
100th launch from Sriharikota
Typical time
50 seconds
Written from
isro.gov.in

Question 62

EasyOriginal question

On which mission did Shubhanshu Shukla become the first Indian astronaut to travel to the International Space Station?

  1. AGaganyaan G1
  2. BAxiom Mission 4
  3. CSoyuz T-11
  4. DCrew-9

Correct answer: B

Explanation

  1. Shukla was mission pilot on Axiom Mission 4, launched on 25 June 2025.

  2. Soyuz T-11 carried Rakesh Sharma in 1984, to the Salyut 7 station.

Concept
Axiom-4
Typical time
40 seconds
Written from
isro.gov.in

Question 63

MediumOriginal question

NISAR, launched in July 2025, carries radars in which two frequency bands?

  1. AC-band and X-band
  2. BKu-band and Ka-band
  3. CL-band and S-band
  4. DS-band and C-band

Correct answer: C

Explanation

  1. NASA provided the L-band radar and ISRO the S-band radar.

  2. NISAR is the first Earth-observation satellite with dual-frequency radars.

Concept
NISAR radars
Typical time
50 seconds
Written from
pib.gov.in

Question 64

MediumOriginal question

How many days did Sunita Williams and Butch Wilmore spend in space on the mission that ended on 18 March 2025?

  1. A171
  2. B286
  3. C464
  4. D608

Correct answer: B

Explanation

  1. Williams and Wilmore spent 286 days in space; Hague and Gorbunov spent 171.

  2. Over three flights Williams has logged 608 days in space, and Wilmore 464.

Concept
Sunita Williams' 2024–25 mission
Typical time
50 seconds
Written from
nasa.gov

Question 65

MediumOriginal question

On which spacecraft did Sunita Williams and Butch Wilmore fly to the International Space Station in June 2024?

  1. AOrion
  2. BSpaceX's Dragon
  3. CSoyuz
  4. DBoeing's Starliner

Correct answer: D

Explanation

  1. They launched on Starliner's crewed flight test on 5 June 2024.

  2. Starliner came back uncrewed; they returned on SpaceX's Dragon with Crew-9.

Concept
Boeing Starliner
Typical time
50 seconds
Written from
nasa.gov

Question 66

MediumOriginal question

Over what distance was India's first free-space Quantum Key Distribution link demonstrated, in 2026?

  1. A1.2 km
  2. B5.56 km
  3. C12 km
  4. D100 km

Correct answer: B

Explanation

  1. The link ran 5.56 km between BISAG-N and IIT Gandhinagar.

  2. It was free-space: the signal crossed open air, not optical fibre.

Concept
Free-space QKD
Typical time
50 seconds
Written from
pib.gov.in

Question 67

EasyOriginal question

What is Quantum Key Distribution used for?

  1. ASharing secret encryption keys
  2. BLocating ships and aircraft by satellite
  3. CForecasting rainfall from radar data
  4. DMapping the ocean floor with sonar

Correct answer: A

Explanation

  1. QKD lets two parties share encryption keys whose interception would be detected.

  2. In the 2026 trial the keys were used to encrypt and decrypt test messages.

Concept
Quantum Key Distribution
Typical time
40 seconds
Written from
pib.gov.in

Question 68

MediumOriginal question

What was the theme of the 10th India Mobile Congress, held in October 2026?

  1. AThe Future Is Now
  2. BInnovate to Transform
  3. CScale Without Boundaries
  4. DConnect the Unconnected

Correct answer: C

Explanation

  1. IMC 2026, the 10th edition, ran on the theme 'Scale Without Boundaries'.

  2. 'The Future Is Now' was the theme of IMC 2024.

Concept
IMC 2026 theme
Typical time
50 seconds
Written from
pib.gov.in

Question 69

EasyOriginal question

The India Mobile Congress is organised by the Department of Telecommunications together with which body?

  1. ANASSCOM
  2. BFICCI
  3. CTRAI
  4. DCOAI

Correct answer: D

Explanation

  1. IMC is organised by DoT and the Cellular Operators Association of India (COAI).

  2. TRAI is the telecom regulator, set up in 1997.

Concept
Who organises IMC
Typical time
40 seconds
Written from
pib.gov.in