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By Karan Singh Bisht
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Updated on 19 Aug 2025, 16:09 IST
Space has always fascinated humans — from ancient stargazers to today’s astronauts, the universe remains a mystery that sparks endless curiosity. This specially curated collection of Space GK will take you on an exciting journey through astronomy, space travel, and the amazing discoveries of the cosmos. Whether you are a student, a space enthusiast, or just someone curious to learn, these space GK questions will boost your knowledge and make learning fun.
Here, you will find a wide variety of GK on space, including the planets in our solar system, famous missions, astronauts, and the latest advancements in space technology. These GK questions about space with answers not only test your knowledge but also help you understand interesting facts in a simple way.
By practicing these space-related GK questions, you’ll get a deeper understanding of the universe and its wonders. So, if you’re looking for GK questions about space, this guide is the perfect way to explore and learn more about the exciting world beyond our planet.
Discover the mysteries of space with our set of GK questions and answers. From planets and moons in the solar system to the newest developments in space science and exploration, these questions are designed to test your knowledge and inspire curiosity about the universe.
Q: What is the study of space called?
Ans: Astronomy
Q: Which is the closest star to Earth?
Ans: The Sun
Q: What is the shape of the Milky Way galaxy?
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Ans: Spiral
Q: Who was the first person to state that Earth revolves around the Sun?
Ans: Nicolaus Copernicus
Q: What is the speed of light?
Ans: 3 × 10⁸ m/s
Q: What is a light year?
Ans: The distance light travels in one year.
Q: What is the age of the universe approximately?
Ans: Around 13.8 billion years
Q: What is the nearest galaxy to the Milky Way?
Ans: Andromeda Galaxy
Q: What is the Big Bang Theory about?
Ans: The origin of the universe.
Q: Which scientist proposed the theory of relativity?
Ans: Albert Einstein
Q: How many planets are there in our solar system?
Ans: 8
Q: Which planet is called the "Red Planet"?
Ans: Mars
Q: Which planet is closest to the Sun?
Ans: Mercury
Q: Which is the largest planet in our solar system?
Ans: Jupiter
Q: Which is the smallest planet in our solar system?
Ans: Mercury
Q: Which planet is known as the "Blue Planet"?
Ans: Earth
Q: Which planet has the most moons?
Ans: Jupiter
Q: Which is the hottest planet in the solar system?
Ans: Venus
Q: Which planet has a storm called the Great Red Spot?
Ans: Jupiter
Q: Which is the coldest planet in the solar system?
Ans: Neptune
Q: What is the natural satellite of Earth?
Ans: The Moon
Q: How long does the Moon take to revolve around Earth?
Ans: About 27 days
Q: What causes tides on Earth?
Ans: The gravitational pull of the Moon and Sun
Q: What are shooting stars actually?
Ans: Meteors
Q: What is a comet made of?
Ans: Ice, dust, and rocky material
Q: Which comet is famous for appearing every 76 years?
Ans: Halley’s Comet
Q: What is the surface of the Moon covered with?
Ans: Craters and dust
Q: Which is the largest asteroid in the solar system?
Ans: Ceres
Q: What is the name of Saturn’s largest moon?
Ans: Titan
Q: What is a black hole?
Ans: A region in space with strong gravity where not even light can escape
Q: Who was the first human in space?
Ans: Yuri Gagarin
Q: Who was the first man to walk on the Moon?
Ans: Neil Armstrong
Q: In which year did humans first land on the Moon?
Ans: 1969
Q: What was the name of the first artificial satellite?
Ans: Sputnik 1
Q: Who was the first Indian in space?
Ans: Rakesh Sharma
Q: What was India’s first satellite?
Ans: Aryabhata
Q: Which country was the first to send a human into space?
Ans: Soviet Union (USSR)
Q: Which was the first animal sent to space?
Ans: Laika (dog)
Q: Which country landed the first rover on Mars?
Ans: USA
Q: What is the name of NASA’s most famous space telescope?
Ans: Hubble Space Telescope
Q: What does ISRO stand for?
Ans: Indian Space Research Organisation
Q: What does NASA stand for?
Ans: National Aeronautics and Space Administration
Q: What is the name of India’s Moon mission in 2008?
Ans: Chandrayaan-1
Q: What was India’s first Mars mission called?
Ans: Mangalyaan (Mars Orbiter Mission)
Q: What is the International Space Station (ISS)?
Ans: A large spacecraft and lab in orbit where astronauts live and work
Q: What is Gaganyaan?
Ans: India’s first human spaceflight mission (planned by ISRO)
Q: Which planet did Voyager 1 and Voyager 2 explore?
Ans: Outer planets (Jupiter, Saturn, Uranus, Neptune)
Q: What is the James Webb Space Telescope used for?
Ans: To observe deep space and early galaxies
Q: What is PSLV in ISRO missions?
Ans: Polar Satellite Launch Vehicle
Q: Which Indian mission aimed to study the Sun?
Ans: Aditya-L1
Q: Which planet rotates on its side?
Ans: Uranus
Q: Which planet has the shortest day?
Ans: Jupiter (about 10 hours)
Q: Which planet has rings made of ice and dust?
Ans: Saturn
Q: What is the name of our galaxy?
Ans: Milky Way
Q: What is the largest known planet outside our solar system (exoplanet)?
Ans: HD 100546 b
Q: What gives stars their light?
Ans: Nuclear fusion of hydrogen into helium
Q: Which star is the brightest in the night sky?
Ans: Sirius
Q: What is the nearest planet to Earth?
Ans: Venus
Q: Which is the densest planet in the solar system?
Ans: Earth
Q: What is the scientific name of the Northern Lights?
Ans: Aurora Borealis
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The purpose of GK Questions on Space with Answers is to provide a comprehensive collection of general knowledge questions and answers related to space, astronomy, and space travel. This resource aims to educate and inform individuals about the wonders of the universe and the latest advancements in space exploration.
This resource is suitable for anyone interested in space, including students, space enthusiasts, and individuals looking to expand their knowledge about the universe. It is particularly useful for those preparing for competitive exams, quizzes, or tests that require knowledge of space-related topics.
Mercury and Venus are the only two planets in our solar system that have no moons. All other planets have at least one. For example, Earth has one moon, while Jupiter has more than 90.
The biggest planet in our solar system is Jupiter. It is a gas giant with a diameter of about 142,984 km, more than 11 times the size of Earth. It also has the most moons in the solar system.
The first person to travel into space was Yuri Gagarin, a Soviet cosmonaut. He orbited Earth on 12 April 1961 in the spacecraft Vostok 1.
Yes, Mars has water in the form of ice at its poles and beneath the surface. Scientists have also found evidence of salty liquid water flows in some places. However, Mars does not have large oceans like Earth.
