By what name is a quasi-stellar radio source better known?

Quasar
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What is the "disk" that encircles a black hole called?
Accretion Disk
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Which branch of science did young Carl Sagan tell his grandfather he wanted to practice?
Astronomy
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Which Apollo mission was launched on April 11, 1970?
Apollo 13
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What is the name for the boundary around a black hole, beyond which events cannot affect the observer?
Event Horizon
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What is Jupiter mostly made of?
Gas
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What causes the moon to shine?
Reflected Sunlight
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To any astronaut, what is an EVA?
Extravehicular Activity
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The path traveled by a body in space is known as what?
Orbit
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In which year did the first space shuttle launch?
1981
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How many stars make up the Big Dipper?
7
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What is a sudden violent explosion on the sun called?
Solar Flare
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How many planets are there in the Solar System (including Pluto)?
9
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Who first proposed the heliocentric model of the solar system?
Aristarcus
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What is Earth's nearest neighbor in space?
The Moon
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How long does it take for the moon to revolve around the earth?
28 Days
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What is the cargo of a spacecraft called?
Payload
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Which constellation represents a hunter with weapons?
Orion
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What are the "Big Dipper" and "Orion" examples of in the night sky?
Constellations
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Who was the first U.S. woman astronaut?
Sally Ride
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Which Apollo mission was launched on January 31, 1971?
Apollo 14
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Which Apollo Mission was launched on November 14, 1969?
Apollo 12
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What is the name for a body in orbit around the Sun?
Planet
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What was the first planet discovered with the aid of a telescope?
Uranus
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Who was the first person in space?
Yuri Gagarin
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