Space! The Final Frontier

Question 1

Which of these is one of Mars' moons?

Accepted Answer

Phobos

Question 2

How many humans have walked on the moon?

Accepted Answer

12

Question 3

A year on Mercury is as long as how many Earth days?

Accepted Answer

88

Question 4

Which planet is the only one that rotates horizontally, with its axis on the side, not top?

Accepted Answer

Uranus

Question 5

What is the speed of light in miles per hour?

Accepted Answer

670 million mph

Question 6

How long in Earth time does it take Neptune to orbit the Sun?

Accepted Answer

165 years

Question 7

What is this constellation known as?

Accepted Answer

the Big Dipper

Question 8

Who was the first man on the moon?

Accepted Answer

Neil Armstrong

Question 9

Which planet has the biggest moon?

Accepted Answer

Jupiter

Question 10

What is the name for millions of stars and star systems clustered together by gravity?

Accepted Answer

galaxy

Question 11

The planets orbiting the Sun past Mars are known as what?

Accepted Answer

the gas giants

Question 12

Mars is named after the Roman god of...

Accepted Answer

war

Question 13

What is the name for space objects too large to be planets and too small to be stars?

Accepted Answer

brown dwarf

Question 14

After a giant star runs out of hydrogen fuel and explodes, what is left behind?

Accepted Answer

a black hole

Question 15

On which planet is a day (rotation on its axis) shorter than a year (orbit around the Sun)?

Accepted Answer

Venus

Question 16

What are Saturn's rings made of?

Accepted Answer

ice, dust, and rocks

Question 17

Which planet has no moons?

Accepted Answer

Mercury

Question 18

Which of these is NOT a star?

Accepted Answer

Europa

Question 19

Which is the hottest planet, with an average temperature of 860° F?

Accepted Answer

Venus

Question 20

The brightest star in the night sky, Sirius, is known as...

Accepted Answer

the dog star

Question 21

How many planets have rings?

Accepted Answer

four

Question 22

Which of these comes first in a star life cycle?

Accepted Answer

stellar nebula

Question 23

What is the name of the biggest moon in the solar system?

Accepted Answer

Ganymede

Question 24

Earth's atmosphere is 78% nitrogen, 21% oxygen. What is Mars' atmosphere mostly made of?

Accepted Answer

95% carbon dioxide

Question 25

About how many miles is Earth from the Sun?

Accepted Answer

93 million

Space! The Final Frontier

Questions 25

Space! The Final Frontier

Questions 25