How much do you know about the planet on which you live? What about the galaxy that you gaze into on a clear summer night? Test your knowledge of our planet Earth, the stars, our Solar System and the Universe!
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Question 1/25
Which Planet spins backwards relative to the others?
Jupiter
Venus
Mars
Question 2/25
How much time does it take for the sun's rays take to reach earth?
8 minutes
10 minutes
12 minutes
Question 3/25
Which planet is nearest to the earth?
Mars
Venus
Mercury
Question 4/25
Which planet is known as the Morning Star or the Evening Star?
Saturn
Uranus
Venus
Question 5/25
When does a lunar eclipse occur?
When the Earth is between the Sun and the Moon
When the Moon is between the Earth and Sun
When the Earth covers the Sun
Question 6/25
How fast is the Andromeda Galaxy approaching the Milky Way Galaxy?
At approximately 50 kilometers per second
At approximately 100 kilometers per second
At approximately 200 kilometers per second
Question 7/25
How many natural satellites of Earth are there?
1
2
3
Question 8/25
Where is the “edge of space” located?
100 miles above sea level
62 miles above sea level
73 miles above sea level
Question 9/25
How much larger is the Sun than the Earth?
10 times larger
100000 times larger
300000 times larger
Question 10/25
Which is the coldest and smallest of all planets?
Saturn
Jupiter
Pluto
Question 11/25
Which is the Hottest Planet in the solar system?
Sun
Earth
Venus
Question 12/25
How many stars are in the Milky Way?
50 billion
1 trillion
100 billion
Question 13/25
Which planet has the most volcanoes?
Earth
Mars
Venus
Question 14/25
When will Halley’s Comet be visible from Earth again?
2061
2053
2080
Question 15/25
When was the first man made object sent into space?
1960
1959
1957
Question 16/25
The closest star to the sun is what?
Proxima Centauri
Star Light, Star Bright
Alpha Centauri A
Question 17/25
Stars are made primarily of what?
Hydrogen and helium
Helium and Carbon
The will to succeed
Question 18/25
Which of the following is NOT a known type of star?
Red giant
White dwarf
Green Giant
Question 19/25
What are comets often called?
Dirty snowballs
Filthy dirt balls
Silly streakers
Question 20/25
What is the nucleus of a comet primarily made of?
Ice and dust
Rock
Hopes and dreams
Question 21/25
How big are the nuclei of most comets?
20 miles (32 km)
10 miles (16 kilometers) or less
100 miles (161 km) or more
Question 22/25
What organization is responsible for naming constellations?
The International Astronomical Union
The friendly staff of SPACE.com
Sky & Telescope Magazine
Question 23/25
Which of these is not a constellation?
Reticulum the Net
Puppis the Stern
Meteoroid the Coward
Question 24/25
What are the only two animal constellations with identical Latin and English names?
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