Space GK Questions And Answers Part III

 

"Top space GK questions and answers on planets, satellites, and missions. Ideal for PSC, UPSC, and competitive exam preparation."

Now we will continue with Part III (201–300) 


Space Basics & Phenomenal


Q201. What is the shape of the Milky Way galaxy?

A201. Spiral galaxy.

Q202. What is the diameter of the Milky Way?

A202. About 100,000 light-years.

Q203. Which galaxy is closest to the Milky Way?

A203. Andromeda Galaxy.

Q204. What is the largest galaxy known?

A204. IC 1101.

Q205. What is the center of the Milky Way called?

A205. Sagittarius A* (a supermassive black hole).

Q206. What is the Big Crunch theory?

A206. The universe may eventually collapse back in on itself.

Q207. What is the Big Rip theory?

A207. The universe may expand until galaxies, stars, and atoms are torn apart.

Q208. What is the multiverse theory?

A208. The idea that many universes exist beyond ours.

Q209. What is a pulsar?

A209. A rapidly rotating neutron star that emits radio waves.

Q210. What is a quasar?

A210. A very bright, active galactic nucleus powered by a black hole.



Space Missions & Exploration


Q211. Which was the first artificial Earth satellite?

A211. Sputnik 1 (USSR, 1957).

Q212. Who launched Sputnik 1?

A212. Soviet Union.

Q213. Which country sent the first animal into orbit?

A213. Soviet Union (Laika the dog).

Q214. Which was the first American satellite?

A214. Explorer 1 (1958).

Q215. Which was the first reusable spacecraft?

A215. Space Shuttle (USA).

Q216. Which spacecraft carried the Hubble Space Telescope into orbit?

A216. Space Shuttle Discovery (1990).

Q217. Which spacecraft is designed for reusable crewed spaceflight by SpaceX?

A217. Crew Dragon.

Q218. Which is the world’s most powerful rocket today?

A218. SpaceX Starship (under testing).

Q219. Which rocket carried Chandrayan-3?

A219. LVM3 (ISRO).

Q220. Which rocket carried Aditya-L1?

A220. PSLV- C57 (2023).



Indian Space Science – Continued


Q221. What does  INSAT  stand for?

A221. Indian National Satellite System.

Q222. What does IRS stand for in Indian satellites?

A222. Indian Remote Sensing satellites.

Q223. Which Indian satellite series is used for weather monitoring?

A223. INSAT series.

Q224. Which Indian satellite series is used for Earth observation?

A224. IRS series.

Q225. What is Cartosat used for?

A225. High-resolution cartographic imaging.

Q226. What is Oceansat used for?

A226. Ocean and coastal studies.

Q227. Which Indian mission studied the Sun’s corona?

A227. Aditya-L1 (2023).

Q228. Which ISRO center develops satellites?

A228. U R Rao Satellite Centre (URSC), Bengaluru.

Q229. Which ISRO center handles rocket launches?

A229. Satish Dhawan Space Centre (SDSC), Sriharikota.

Q230. Which ISRO center handles rocket propulsion?

A230. Liquid Propulsion Systems Centre (LPSC), Thiruvananthapuram.



Astronomical Knowledge


Q231. Which is the largest volcano in the solar system?

A231. Olympus Mons on Mars.

Q232. Which planet has the tallest mountain?

A232. Mars (Olympus Mons).

Q233. Which planet has the deepest canyon?

A233. Mars (Valles Marineris).

Q234. Which planet is called the “Evening Star”?

A234. Venus.

Q235. Which planet has the strongest magnetic field?

A235. Jupiter.

Q236. Which planet rotates sideways?

A236. Uranus.

Q237. Which planet has the fastest winds?

A237. Neptune.

Q238. Which planet has the coldest average temperature?

A238. Neptune.

Q239. Which moon has geysers of water?

A239. Enceladus (Saturn’s moon).

Q240. Which moon is suspected to have a subsurface ocean?

A240. Europa (Jupiter’s moon).



Space Technology & Future


Q241. What is a space telescope?

A241. A telescope placed in orbit above Earth’s atmosphere.

Q242. Name two famous space telescopes.

A242. Hubble, James Webb.

Q243. What is the main feature of James Webb Telescope?

A243. Infrared observation capability.

Q244. What is a CubeSat?

A244. A miniaturized satellite for space research.

Q245. What is reusable rocket technology?

A245. Rockets that can land and be reused for multiple launches.

Q246. Which company pioneered reusable rockets?

A246. SpaceX (Falcon 9).

Q247. What is the purpose of Blue Origin’s New Shepard rocket?

A247. Suborbital space tourism.

Q248. Which company is developing Starship for Mars missions?

A248. SpaceX.

Q249. What is Virgin Galactic’s focus?

A249. Commercial space tourism.

Q250. What is NASA’s Orion spacecraft?

A250. A deep-space crew vehicle for Artemis missions.



Space & Astronomy Basics


Q251. What is the nearest major galaxy to the Milky Way?

A251. Andromeda Galaxy.

Q252. What is the speed of light in space?

A252. About 299,792 km/s.

Q253. What is the unit used to measure distances between stars?

A253. Light-year.

Q254. What is a parsec?

A254. A unit of distance equal to 3.26 light-years.

Q255. Which is the brightest star in the night sky?

A255. Sirius.

Q256. Which is the closest star system to Earth?

A256. Alpha Centauri.

Q257. What is a white dwarf?

A257. The remnant of a star after it has exhausted its fuel.

Q258. What is a brown dwarf?

A258. A failed star that did not gain enough mass for nuclear fusion.

Q259. What is a red giant?

A259. A star in the late stage of its evolution, expanding in size.

Q260. What is a planetary nebula?

A260. A glowing shell of gas ejected by dying stars.



Solar System Knowledge


Q261. Which planet has the longest day?

A261. Venus.

Q262. Which planet has the shortest day?

A262. Jupiter.

Q263. Which planet has the highest surface temperature?

A263. Venus.

Q264. Which planet has the most moons?

A264. Saturn.

Q265. Which is the smallest planet in the Solar System?

A265. Mercury.

Q266. Which is the densest planet?

A266. Earth.

Q267. Which planet has a day nearly equal to Earth’s day?

A267. Mars.

Q268. Which planet has methane lakes on its moon Titan?

A268. Saturn.

Q269. Which planet’s moon is the largest in the Solar System?

A269. Jupiter’s Ganymede.

Q270. Which planet has a retrograde rotation?

A270. Venus.



Indian Space Achievements


Q271. Who is known as the Father of the Indian Space Programme?

A271. Dr. Vikram Sarabhai.

Q272. When was ISRO established?

A272. 1969.

Q273. What was India’s first satellite?

A273. Aryabhata (1975).

Q274. What was India’s first Moon mission?

A274. Chandrayan-1 (2008).

Q275. What was India’s first Mars mission?

A275. Mangalyaan (2013).

Q276. Which Indian mission discovered water on the Moon?

A276. Chandrayan-1.

Q277. Which Indian rocket is nicknamed “the workhorse”?

A277. PSLV.

Q278. Which was India’s heaviest rocket?

A278. GSLV Mk III (now called LVM3).

Q279. Which Indian mission aims to study the Sun?

A279. Aditya-L1.

Q280. Which Indian mission achieved a soft landing near the Moon’s South Pole?

A280. Chandrayan-3 (2023).



Famous Space Missions Worldwide


Q281. Which was the first spacecraft to fly by Mars?

A281. Mariner 4 (NASA, 1965).

Q282. Which was the first spacecraft to land on Mars?

A282. Viking 1 (NASA, 1976).

Q283. Which was the first spacecraft to orbit Jupiter?

A283. Galileo (NASA, 1995).

Q284. Which spacecraft is currently orbiting Jupiter?

A284. Juno (NASA).

Q285. Which was the first spacecraft to land on Venus?

A285. Venera 7 (USSR, 1970).

Q286. Which spacecraft is exploring Saturn and its moons?

A286. Cassini (NASA/ESA/ASI, 1997–2017).

Q287. Which was the first spacecraft to land on Titan?

A287. Huygens (ESA, 2005).

Q288. Which spacecraft visited Pluto?

A288. New Horizons (NASA, 2015).

Q289. Which spacecraft studied the Sun’s atmosphere in detail?

A289. Parker Solar Probe (NASA).

Q290. Which mission is the most powerful space telescope launched?

A290. James Webb Space Telescope (2021).



Space Science & Technology


Q291. What is the International Space Station (ISS)?

A291. A habitable artificial satellite in low Earth orbit.

Q292. Which countries are part of the ISS project?

A292. USA, Russia, Japan, Canada, and European Space Agency (ESA).

Q293. How many people can live in the ISS at a time?

A293. Around 6–7 astronauts.

Q294. What is microgravity?

A294. A condition of near weightlessness experienced in orbit.

Q295. What is a spacesuit used for?

A295. To protect astronauts in space and supply oxygen.

Q296. What is a rover?

A296. A robotic vehicle designed to move on the surface of another planet or moon.

Q297. What is a lander?

A297. A spacecraft designed to land on a pla

net’s surface.

Q298. What is a probe?

A298. An unmanned spacecraft sent to explore space.

Q299. What is an exoplanet?

A299. A planet orbiting a star outside our Solar System.

Q300. Which is the first confirmed exoplanet discovery?

A300. 51 Pegasi b (1995).

Go to Part IV to see the next part.............


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