Planets
Stars
Galaxies
Discoveries
100

Which planet is closest to the sun?

Mercury

100

What type of star is our sun?

Yellow Dwarf

100

What are the three types of galaxies?

Spiral, elliptical, irregular

100

What was Gallileo's first discovery?

Built the first telescope to find four new "stars" orbiting Jupiter (Jupiters moons)

200

Which planet is furthest from the sun?

Neptune

200

Is our sun considered a big or small star?

Small star

200

What type of galaxy is the Milky Way?

Spiral galaxy

200

Who was the first person to go on the moon?

Neil Armstrong

300

Which planet is known for its big red spot?

Jupiter

300
Do high mass stars live for a long or short period of time?

They live for shorter periods of time, unlike low mass stars who can live up to 10 trillion years

300

What is the supermassive black hole called in the center of our galaxy?

Sagittarius A

300

Who was the second man on the moon?

Buzz Aldrin

400

How many gas giants are there?

Four

400

What is the name of the North star?

Polaris

400

When is it predicted that our galaxy will collide with another?

In about 5 billion years

400

Who discovered the cosmos?

Edwin Hubble

500

Which planet rotates in a clockwise direction?

Venus

500

How many stars does the Andromeda galaxy have?

1 trillion

500

What is the biggest galaxy we have found?

IC 1101

500

When were black holes (or the idea of them) discovered?

18th century

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