The series is divided into 5 parts( 100 Q&A each), ensuring a structured learning journey through the world of space exploration.
Space GK Questions & Answers part I
Indian Space (ISRO & Missions)
Q1. When was ISRO (Indian Space Research Organisation) founded?
A1. 1969.
Q2. Who founded ISRO?
A2. Dr. Vikram Sarabhai.
Q3. What was India’s first satellite?
A3. Aryabhata (1975).
Q4. Which country helped India launch Aryabhata?
A4. Soviet Union.
Q5. What is the full form of ISRO?
A5. Indian Space Research Organisation.
Q6. Where is ISRO headquarters located?
A6. Bengaluru, Karnataka.
Q7. Which was India’s first experimental satellite?
A7. Rohini Satellite (RS-1).
Q8. Which was India’s first communication satellite?
A8. APPLE (1981).
Q9. Which launch vehicle is called ISRO’s “workhorse”?
A9. PSLV (Polar Satellite Launch Vehicle).
Q10. What is the full form of GSLV?
A10. Geosynchronous Satellite Launch Vehicle.
Q11. Which mission made India the first Asian nation to reach Mars orbit?
A11. Mangalyaan (Mars Orbiter Mission, 2014).
Q12. Which ISRO mission discovered water molecules on the Moon?
A12. Chandrayaan-1 (2008).
Q13. Which year was Chandrayaan-2 launched?
A13. 2019.
Q14. Which Chandrayaan mission successfully landed on the Moon?
A14. Chandrayaan-3 (2023).
Q15. Who was the first Indian in space?
A15. Rakesh Sharma (1984).
Q16. On which spacecraft did Rakesh Sharma travel to space?
A16. Soyuz T-11.
Q17. Which Indian navigation system is equivalent to GPS?
A17. NavIC (Navigation with Indian Constellation).
Q18. Which ISRO mission launched 104 satellites at once?
A18. PSLV-C37 (2017).
Q19. Which Indian observatory studies the universe in different wavelengths?
A19. Astrosat (2015).
Q20. What is India’s first reusable launch vehicle prototype called?
A20. RLV-TD (Reusable Launch Vehicle–Technology Demonstrator).
Q21. What is the name of India’s upcoming human spaceflight mission?
A21. Will do.
Q22. Where is ISRO’s main rocket launch centre?
A22. Satish Dhawan Space Centre (Sriharikota, Andhra Pradesh).
Q23. Where is the Vikram Sarabhai Space Centre (VSSC) located?
A23. Thiruvananthapuram, Kerala.
Q24. Which ISRO rocket is designed to launch small satellites?
A24. SSLV (Small Satellite Launch Vehicle).
Q25. In which year did India test its cryogenic engine successfully?
A25. 2014 (GSLV-D5).
World Space
Q26. Who was the first human in space?
A26. Yuri Gagarin (1961, Soviet Union).
Q27. Who was the first man to walk on the Moon?
A27. Neil Armstrong (1969).
Q28. Which U.S. mission first landed on the Moon?
A28. Apollo 11.
Q29. Who was the second man on the Moon?
A29. Buzz Aldrin.
Q30. Who was the first woman in space?
A30. Valentina Tereshkova (1963, Soviet Union).
Q31. Who was the first American in space?
A31. Alan Shepard (1961).
Q32. What was the first artificial satellite launched into space?
A32. Sputnik 1 (1957).
Q33. Which country launched Sputnik 1?
A33. Soviet Union.
Q34. Who was the first American to orbit Earth?
A34. John Glenn (1962).
Q35. Which spacecraft carried the first humans to orbit the Moon?
A35. Apollo 8 (1968).
Q36. Which was the first reusable spacecraft?
A36. NASA’s Space Shuttle (first flight 1981).
Q37. Which U.S. space shuttle was destroyed in 1986?
A37. Challenger.
Q38. Which U.S. space shuttle was destroyed in 2003?
A38. Columbia.
Q39. What is the largest artificial structure in space?
A39. International Space Station (ISS).
Q40. Which country was the first to send a spacecraft to the far side of the Moon?
A40. China (Changge-4, 2019).
Q41. Which planet is known as the “Red Planet”?
A41. March.
Q42. Which planet is the largest in the solar system?
A42. Jupiter.
Q43. Which planet is closest to the Sun?
A43. Mercury.
Q44. Which planet has the longest day?
A44. Venus.
Q45. Which planet has a Great Red Spot storm?
A45. Jupiter.
Q46. Which planet has the most rings?
A46. Saturn.
Q47. Which is the hottest planet in our solar system?
A47. Venus.
Q48. Which planet rotates on its side?
A48. Uranus.
Q49. Which is the smallest plane
t in the solar system?
A49. Mercury.
Q50. Which dwarf planet was once considered the ninth planet?
A50. Pluto.
Solar System & Universe
Q51. What is the Sun mainly made of?
A51. Hydrogen and Helium.
Q52. What type of star is the Sun?
A52. Yellow dwarf (G-type main-sequence star).
Q53. What is the closest star to Earth after the Sun?
A53. Proxima Centauri.
Q54. What is the brightest star in the night sky?
A54. Sirius.
Q55. What galaxy do we live in?
A55. The Milky Way Galaxy.
Q56. What is the closest galaxy to the Milky Way?
A56. Andromeda Galaxy.
Q57. What is a light-year?
A57. The distance light travels in one year (~9.46 trillion km).
Q58. Which is the largest planet in our solar system?
A58. Jupiter.
Q59. Which is the smallest planet in our solar system?
A59. Mercury.
Q60. Which planet has the fastest rotation?
A60. Jupiter.
Q61. Which planet is known as “Earth’s twin”?
A61. Venus.
Q62. Which planet is known as the “Blue Planet”?
A62. Earth.
Q63. Which planet is known for having the largest volcano in the solar system?
A63. Mars (Olympus Mons).
Q64. Which planet has the strongest winds?
A64. Neptune.
Q65. Which planet is tilted about 98 degrees on its axis?
A65. Uranus.
Q66. Which planet has the most moons?
A66. Saturn (over 80 confirmed).
Q67. Which planet is called the “Morning Star” or “Evening Star”?
A67. Venus.
Q68. What is the asteroid belt?
A68. A region of space between Mars and Jupiter containing many asteroids.
Q69. What is a comet mostly made of?
A69. Ice, dust, and gas.
Q70. What is a meteor called if it reaches Earth’s surface?
A70. Meteorite.
Space Discoveries & Astronomy
Q71. Who proposed the heliocentric model of the solar system?
A71. Nicolaus Copernicus.
Q72. Who discovered the laws of planetary motion?
A72. Johannes Kepler.
Q73. Who discovered the law of gravity?
A73. Sir Isaac Newton.
Q74. Who discovered Saturn’s rings through a telescope?
A74. Galileo Galilei.
Q75. Who was the first to classify galaxies?
A75. Edwin Hubble.
Q76. What does the Hubble Space Telescope observe?
A76. Deep space objects like galaxies, stars, and nebulae.
Q77. What is the name of NASA’s most powerful telescope launched in 2021?
A77. James Webb Space Telescope (JWST).
Q78. What is a black hole?
A78. A region in space where gravity is so strong that not even light can escape.
Q79. What is a supernova?
A79. A massive explosion at the end of a star’s life cycle.
Q80. What is a neutron star?
A80. A very dense remnant of a massive star after a supernova.
Q81. What is a pulsar?
A81. A rotating neutron star that emits beams of radiation.
Q82. What is a quasar?
A82. An extremely bright and distant active galactic nucleus.
Q83. What is dark matter?
A83. A mysterious, invisible substance that makes up most of the universe’s mass.
Q84. What is dark energy?
A84. A mysterious force causing the universe’s accelerated expansion.
Q85. What is the Big Bang Theory?
A85. The theory that the universe began with a massive explosion ~13.8 billion years ago.
Space Organizations & Missions
Q86. What does NASA stand for?
A86. National Aeronautics and Space Administration (USA).
Q87. What does ESA stand for?
A87. European Space Agency.
Q88. What does CNSA stand for?
A88. China National Space Administration.
Q89. What is SpaceX?
A89. A private aerospace company founded by Elon Musk.
Q90. Which is the first private spacecraft to deliver cargo to the ISS?
A90. SpaceX Dragon (2012).
Q91. What is the name of SpaceX’s reusable rocket?
A91. Falcon 9.
Q92. What is the name of SpaceX’s spacecraft designed for Mars missions?
A92. Starship.
Q93. What is Blue Origin?
A93. A private space company founded by Jeff Bezos.
Q94. What is the name of Blue Origin’s suborbital rocket?
A94. New Shepard.
Q95. What is Roscosmos?
A95. Russian space agency.
Q96. Which countries are partners in the International Space Station (ISS)?
A96. USA, Russia, Japan, Canada, and European nations.
Q97. Which planet did NASA’s Perseverance rover land on in 2021?
A97. Mars.
Q98. What is the name of NASA’s helicopter on Mars?
A98. Ingenuity.
Q99. What is the name o
f the Indian human spaceflight mission planned by ISRO?
A99. Will do.
Q100. Which ISRO mission will study the Sun?
A100. Aditya-L1 (launched 2023).
Go to Part II to see the next part.............
Go to Part III to see the next part.............
