Space & Astronomy

Question 1

What is the largest planet in our solar system?

Accepted Answer

Jupiter

Question 2

How long does light from the Sun take to reach Earth?

Accepted Answer

About 8 minutes and 20 seconds

Question 3

What is a light-year?

Accepted Answer

Distance light travels in one year (~9.46T km)

Question 4

Who was the first person to walk on the Moon?

Accepted Answer

Neil Armstrong (July 20, 1969)

Question 5

What is a black hole?

Accepted Answer

Region where gravity prevents even light escaping

Question 6

Which planet has the most moons in our solar system?

Accepted Answer

Saturn (over 140 confirmed moons)

Question 7

What is the closest star to Earth (besides the Sun)?

Accepted Answer

Proxima Centauri (about 4.24 light-years away)

Question 8

What causes a solar eclipse?

Accepted Answer

Moon passes between Sun and Earth, blocking light

Question 9

What is the Milky Way?

Accepted Answer

Our barred spiral galaxy with 100-400 billion stars

Question 10

What is the International Space Station (ISS) orbiting altitude?

Accepted Answer

Approximately 408 kilometers (253 miles) above Earth

Question 11

Which planet rotates on its side with an axial tilt of about 98 degrees?

Accepted Answer

Uranus

Question 12

What is a supernova?

Accepted Answer

Explosive death of a massive star

Question 13

What is the Great Red Spot on Jupiter?

Accepted Answer

A giant storm raging for at least 350 years

Question 14

How old is the universe approximately?

Accepted Answer

About 13.8 billion years

Question 15

What is the Hubble Space Telescope named after?

Accepted Answer

Edwin Hubble, who proved galaxies exist beyond ours

Question 16

Which planet has the longest day (rotation period)?

Accepted Answer

Venus (about 243 Earth days for one rotation)

Question 17

What are Saturn's rings primarily made of?

Accepted Answer

Ice and rocky debris from tiny grains to boulders

Question 18

What is the Kuiper Belt?

Accepted Answer

Icy bodies beyond Neptune, home to Pluto

Question 19

Who was the first human in space?

Accepted Answer

Yuri Gagarin (April 12, 1961, aboard Vostok 1)

Question 20

What is a neutron star?

Accepted Answer

Ultra-dense collapsed core of a massive star

Question Preview