Space & Astronomy Quiz

• The Solar System — Planets, dwarf planets (Pluto), asteroid belts, orbits, and planetary atmospheres.
• Stars & Galaxies — Stellar life cycles, supernovas, nebulae, the Milky Way, and galaxy classification.
• Space Missions — Apollo lunar landings, space shuttles, the International Space Station, ISRO lunar attempts, and rovers like Curiosity.
• Exotic Phenomena — Black holes, event horizons, pulsars, dark matter, and gravitational lensing.
• Cosmology — The Big Bang Theory, speed of light, the habitable zone, and the Drake Equation.

• 😊 Easy (30 seconds, 100 pts) — Planetary basics: colors of Mars, counts of planets, first people in space, and gravity basics.
• 🔥 Medium (20 seconds, 150 pts) — Star lifespans: supernova definitions, light speed calculations, telescope names, and basic moon counts.
• 💀 Hard (15 seconds, 200 pts) — Advanced astrophysics: dark energy metrics, specific planetary axes, orbital velocities, and space equations.

Q1. What is the closest planet to the Sun?

✅ Answer: Mercury

Mercury is the closest planet to the Sun at an average distance of 58 million km, experiencing extreme temperature variations.

Q2. What is a black hole?

✅ Answer: A region of spacetime with gravity so strong nothing can escape

A black hole has an escape velocity exceeding the speed of light, trapping all matter and radiation past its event horizon.

Q3. Who was the first person to walk on the Moon?

✅ Answer: Neil Armstrong

Neil Armstrong walked on the Moon on July 20, 1969, during NASA's historic Apollo 11 lunar mission.

Q4. How old is the universe estimated to be?

✅ Answer: 13.8 billion years

Cosmologists estimate the universe is 13.8 billion years old based on observations of cosmic background radiation and expansion rates.

Q5. What is the largest planet in our solar system?

✅ Answer: Jupiter

Jupiter is the largest planet in our solar system, with a mass 2.5 times greater than all other planets combined.