GK Questions on Space with Answers

Are you fascinated by the mysteries of the universe? Exploring space can be exciting, and learning interesting facts about it can boost your knowledge. Whether you're a student preparing for a quiz or just someone curious about the cosmos, these space GK questions will help you uncover amazing facts about the universe.

In this guide, you'll find a collection of GK questions about space designed to test your knowledge and improve your understanding of astronomy. These space-related GK questions cover everything from planets and stars to satellites and space missions. Each question is paired with an answer to ensure you not only challenge yourself but also learn something new.

If you're looking for GK questions related to space for school competitions, online quizzes, or general curiosity, this is the perfect place to start. Our collection of space GK questions with answers is designed to be easy to understand, ensuring learners of all ages can grasp the concepts.

From basic GK on space to advanced general knowledge questions about space, this guide offers a wide range of information. Whether it's about black holes, astronauts, or famous space missions, these GK questions on space in English will prepare you to shine in any quiz.

So, dive into this exciting journey and discover the wonders of the cosmos with our engaging space quiz questions with answers.

GK Questions on Space with Answers and Explanation

Here are interesting and informative GK questions about space along with detailed Explanation: s to help you understand key concepts.

Ques: What is the largest planet in our solar system?

Ans: Jupiter

Explanation: Jupiter is the largest planet in our solar system. It has a massive size, strong gravitational force, and is known for its Great Red Spot, a giant storm.

Ques: Which planet is known as the "Red Planet"?

Ans: Mars

Explanation: Mars is called the Red Planet due to its reddish appearance caused by iron oxide (rust) on its surface.

Ques: What is the closest planet to the Sun?

Ans: Mercury

Explanation: Mercury is the smallest and closest planet to the Sun, completing its orbit in just 88 days.

Ques: Which planet is known for its beautiful ring system?

Ans: Saturn

Explanation: Saturn’s iconic ring system is made of ice, rock, and dust particles, giving it a stunning appearance.

Ques: What is the hottest planet in our solar system?

Ans: Venus

Explanation: Venus is the hottest planet due to its thick atmosphere that traps heat, resulting in surface temperatures of over 450°C.

Ques: What is the name of Earth's natural satellite?

Ans: The Moon

Explanation: The Moon is Earth's only natural satellite and plays a crucial role in controlling tides.

Ques: Which planet is known as the "Morning Star" or "Evening Star"?

Ans: Venus

Explanation: Venus appears bright in the sky during sunrise and sunset, earning it these nicknames.

Ques: Which planet is called the "Blue Planet"?

Ans: Earth

Explanation: Earth's oceans cover about 71% of its surface, giving it a distinct blue color from space.

Ques: What is the name of the galaxy that contains our solar system?

Ans: The Milky Way

Explanation: The Milky Way is a barred spiral galaxy that houses our solar system.

Ques: What is the nearest star to Earth after the Sun?

Ans: Proxima Centauri

Explanation: Proxima Centauri is part of the Alpha Centauri star system and is approximately 4.24 light-years away.

Ques: What is the largest moon in the solar system?

Ans: Ganymede

Explanation: Ganymede, a moon of Jupiter, is the largest moon in the solar system and even larger than Mercury.

Ques: What is a black hole?

Ans: A region in space where gravity is so strong that nothing, not even light, can escape.

Explanation: Black holes form from the remnants of massive stars that have collapsed under their own gravity.

Ques: What is the name of the first artificial satellite launched into space?

Ans: Sputnik 1

Explanation: Launched by the Soviet Union in 1957, Sputnik 1 marked the beginning of the space age.

Ques: Who was the first person to walk on the Moon?

Ans: Neil Armstrong

Explanation: Neil Armstrong became the first human to walk on the Moon on July 20, 1969, during NASA's Apollo 11 mission.

Ques: What is the largest asteroid in our solar system?

Ans: Ceres

Explanation: Ceres is located in the asteroid belt between Mars and Jupiter and is classified as a dwarf planet.

Ques: Which planet is known for having the most moons?

Ans: Saturn

Explanation: Saturn currently holds the record for the most known moons, surpassing Jupiter.

Ques: What is the name of the spacecraft that carried humans to the Moon in 1969?

Ans: Apollo 11

Explanation: The Apollo 11 mission successfully landed astronauts on the Moon, with Neil Armstrong and Buzz Aldrin walking on its surface.

Ques: What is the name of the first Indian astronaut to travel to space?

Ans: Rakesh Sharma

Explanation: Rakesh Sharma became the first Indian in space in 1984 aboard the Soviet spacecraft Soyuz T-11.

Ques: Which planet rotates on its side?

Ans: Uranus

Explanation: Uranus has a unique tilt of about 98 degrees, causing it to rotate on its side.

Ques: What is the name of the telescope launched by NASA to explore deep space?

Ans: Hubble Space Telescope

Explanation: The Hubble Space Telescope has provided remarkable images of galaxies, stars, and other celestial objects since its launch in 1990.

Ques: Which planet is often called Earth's "twin" due to its similar size?

Ans: Venus

Explanation: Venus is nearly identical in size and composition to Earth, although its climate is drastically different.

Ques: What is a meteor?

Ans: A small space rock that burns up upon entering Earth's atmosphere.

Explanation: A meteor is often seen as a "shooting star."

Ques: What is a comet's tail made of?

Ans: Gas and dust

Explanation: When a comet approaches the Sun, heat causes its icy core to release gas and dust, forming a glowing tail.

Ques: Which spacecraft was the first to visit Pluto?

Ans: New Horizons

Explanation: NASA’s New Horizons spacecraft flew past Pluto in 2015, providing detailed images of the dwarf planet.

Ques: What is the coldest planet in our solar system?

Ans: Uranus

Explanation: Despite Neptune being farther from the Sun, Uranus holds the record for the coldest temperature ever recorded in the solar system (-224°C).

Ques: What is the International Space Station (ISS)?

Ans: A habitable artificial satellite in low Earth orbit.

Explanation: The ISS is a joint project involving NASA, Roscosmos, JAXA, ESA, and CSA, where astronauts conduct scientific research.

Ques: Which gas makes up most of the Sun’s mass?

Ans: Hydrogen

Explanation: The Sun is composed mainly of hydrogen (about 74%) and helium (about 24%).

Ques: What is a light-year?

Ans: The distance light travels in one year.

Explanation: A light-year is about 9.46 trillion kilometers and is used to measure vast distances in space.

Ques: What is the Great Red Spot on Jupiter?

Ans: A massive storm

Explanation: The Great Red Spot is a persistent high-pressure storm in Jupiter’s atmosphere, larger than Earth itself.

Ques: Which planet has the shortest day in the solar system?

Ans: Jupiter

Explanation: Jupiter rotates extremely fast, completing one rotation in just under 10 hours.

MCQ GK Questions on Space with Answers and Explanations

Here are 20 multiple-choice space GK questions designed to test your knowledge and improve your understanding of astronomy.

Ques: Which planet is known as the "Morning Star"?

A) Mars

B) Venus

C) Jupiter

D) Mercury

Ans: B) Venus

Explanation: Venus is called the "Morning Star" or "Evening Star" because it appears very bright in the sky during sunrise and sunset.

Ques: What is the largest planet in the solar system?

A) Saturn

B) Neptune

C) Jupiter

D) Earth

Ans: C) Jupiter

Explanation: Jupiter is the largest planet with a diameter of approximately 142,984 km.

Ques: What is the smallest planet in our solar system?

A) Mercury

B) Mars

C) Pluto

D) Venus

Ans: A) Mercury

Explanation: Mercury is the smallest planet in the solar system with a diameter of about 4,880 km.

Ques: What is the hottest planet in the solar system?

A) Mercury

B) Mars

C) Venus

D) Earth

Ans: C) Venus

Explanation: Venus has a thick atmosphere filled with carbon dioxide, which traps heat and makes it hotter than Mercury.

Ques: Which planet is known for its rings?

A) Uranus

B) Saturn

C) Neptune

D) Jupiter

Ans: B) Saturn

Explanation: Saturn's beautiful ring system is made up of ice, dust, and rock particles.

Ques: What is the name of the first artificial satellite launched into space?

A) Explorer 1

B) Sputnik 1

C) Apollo 11

D) Voyager 1

Ans: B) Sputnik 1

Explanation: Sputnik 1, launched by the Soviet Union in 1957, was the first artificial satellite to orbit Earth.

Ques: What is the largest moon in the solar system?

A) Titan

B) Ganymede

C) Io

D) Callisto

Ans: B) Ganymede

Explanation: Ganymede, a moon of Jupiter, is the largest moon in the solar system and is larger than Mercury.

Ques: Which planet is known as the "Red Planet"?

A) Mars

B) Mercury

C) Venus

D) Earth

Ans: A) Mars

Explanation: Mars appears red due to iron oxide (rust) on its surface.

Ques: What is the closest star to Earth (after the Sun)?

A) Proxima Centauri

B) Sirius

C) Alpha Centauri

D) Betelgeuse

Ans: A) Proxima Centauri

Explanation: Proxima Centauri, located 4.24 light-years away, is the closest star to Earth after the Sun.

Ques: Which planet has the most moons?

A) Jupiter

B) Saturn

C) Uranus

D) Neptune

Ans: B) Saturn

Explanation: Saturn currently holds the record for the most known moons, with over 80 confirmed moons.

Ques: What is the main gas in the Sun?

A) Oxygen

B) Helium

C) Hydrogen

D) Nitrogen

Ans: C) Hydrogen

Explanation: The Sun is composed primarily of hydrogen, which undergoes nuclear fusion to produce energy.

Ques: Who was the first person to walk on the Moon?

A) Yuri Gagarin

B) Buzz Aldrin

C) Neil Armstrong

D) Alan Shepard

Ans: C) Neil Armstrong

Explanation: Neil Armstrong became the first human to walk on the Moon on July 20, 1969.

Ques: Which planet has the fastest rotation?

A) Jupiter

B) Venus

C) Earth

D) Mars

Ans: A) Jupiter

Explanation: Jupiter has the shortest day in the solar system, completing one rotation in just under 10 hours.

Ques: What is the name of the largest volcano in the solar system?

A) Mount Everest

B) Mauna Loa

C) Olympus Mons

D) Vesuvius

Ans: C) Olympus Mons

Explanation: Olympus Mons is a massive shield volcano on Mars, towering over 21 km high.

Ques: Which spacecraft was the first to successfully land on Mars?

A) Curiosity Rover

B) Viking 1

C) Opportunity Rover

D) Mars Pathfinder

Ans: B) Viking 1

Explanation: Viking 1 was the first successful lander on Mars, arriving in 1976.

Ques: What is the name of the first Indian satellite launched in 1975?

A) Aryabhata

B) Bhaskara I

C) INSAT-1A

D) Rohini

Ans: A) Aryabhata

Explanation: Aryabhata was India's first artificial satellite, launched by the Soviet Union in 1975.

Ques: What is the coldest planet in our solar system?

A) Neptune

B) Pluto

C) Uranus

D) Saturn

Ans: C) Uranus

Explanation: Uranus holds the record for the coldest temperature ever recorded in the solar system (-224°C).

Ques: Which planet is known to rotate backward (retrograde rotation)?

A) Venus

B) Mars

C) Jupiter

D) Mercury

Ans: A) Venus

Explanation: Venus rotates in the opposite direction of most planets, spinning from east to west.

Ques: What is the name of the boundary marking the end of our solar system?

A) Asteroid Belt

B) Oort Cloud

C) Kuiper Belt

D) Heliosphere

Ans: D) Heliosphere

Explanation: The heliosphere is a bubble-like region dominated by the solar wind that marks the boundary of the solar system.

Ques: Which Indian space mission successfully entered Mars' orbit in its first attempt?

A) Chandrayaan-1

B) Mangalyaan (Mars Orbiter Mission)

C) Astrosat

D) Gaganyaan

Ans: B) Mangalyaan (Mars Orbiter Mission)

Explanation: Launched by ISRO in 2013, Mangalyaan made India the first country to enter Mars' orbit on its maiden attempt.

Conclusion

Exploring the mysteries of space is both fascinating and essential for understanding our universe. From the blazing Sun to the icy edges of Neptune, every planet, star, and celestial body has its unique story. By learning these space GK questions with answers, you not only gain valuable knowledge but also develop a deeper curiosity about the cosmos.

Whether you're preparing for a school quiz, a competitive exam, or simply wish to expand your general knowledge, these questions provide key insights into astronomy, space missions, and celestial phenomena. Remember, the universe is vast, and there’s always more to explore. So, keep questioning, keep learning, and stay curious about the incredible wonders of space!