Astronomy Facts

Name:

Date:

Instructions: Test your knowledge of the stars, planets, and cosmos!

1.
Which planet is known as the 'Red Planet'?
A
Jupiter
B
Mars
C
Venus
D
Saturn
2.
What is the closest star to Earth?
A
The Sun
B
Proxima Centauri
C
Sirius
D
Alpha Centauri A
3.
How many planets are in our solar system?
A
7
B
10
C
9
D
8
4.
What is the name of our galaxy?
A
Triangulum
B
Whirlpool
C
Andromeda
D
The Milky Way
5.
Which planet is the largest in our solar system?
A
Jupiter
B
Uranus
C
Saturn
D
Neptune
6.
What phenomenon occurs when the Moon passes between the Sun and the Earth?
A
Aurora borealis
B
Solar eclipse
C
Solstice
D
Lunar eclipse
7.
Which planet has the most extensive ring system in our solar system?
A
Jupiter
B
Uranus
C
Neptune
D
Saturn
8.
What is a light-year a measurement of?
A
Distance
B
Speed
C
Time
D
Brightness
9.
Who was the first person to walk on the Moon?
A
Buzz Aldrin
B
Yuri Gagarin
C
John Glenn
D
Neil Armstrong
10.
What type of celestial object is Halley's Comet?
A
Short-period comet
B
Meteor
C
Dwarf planet
D
Asteroid
11.
What is the name of the boundary at the edge of our solar system where the solar wind is stopped by interstellar space?
A
Kuiper Belt
B
Heliopause
C
Heliosphere
D
Oort Cloud
12.
Which moon of Jupiter is believed to have a subsurface ocean that could potentially harbor life?
A
Ganymede
B
Io
C
Callisto
D
Europa
13.
What is the approximate age of the universe according to current scientific estimates?
A
9.8 billion years
B
13.8 billion years
C
20.4 billion years
D
4.6 billion years
14.
What is the densest type of stellar remnant, formed when a massive star collapses?
A
Red giant
B
Black hole
C
Neutron star
D
White dwarf
15.
Which space telescope, launched in 1990, has provided some of the most detailed visible-light images of distant galaxies?
A
Chandra X-ray Observatory
B
James Webb Space Telescope
C
Hubble Space Telescope
D
Spitzer Space Telescope

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