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What is the theory that states the universe began with a huge explosion?

• Apparent Magnitude
• Light year
• Big Bang Theory
• Galaxy

What is the brightness of a star as it appears to an observer on Earth?

• Big Bang Theory
• Apparent Magnitude
• Light year
• Spiral Galaxy

What is the distance that light can travel in one year? 

• Light year
• Irregular Galaxy
• Supernova
• Quasar 

What is a small, hot, dim star that is the leftover center of an old star?

• Spiral Galaxy
• Supernova
• White Dwarf
• Black Hole

What is gigantic explosion that causes the death of a massive star?

• Supernova
• Nebula
• Red Giant
• White Dwarf

What is a spinning neutron star that emits rapid pulses of radio and optical energy?

• Elliptical Galaxy
• Neutron Star
• Globular Cluster
• Pulsar

What is an object that is so massive and dense that even light can not escape its gravity?

• Main-sequence
• black hole
• Apparent Magnitude
• Comet

What is a large grouping of stars, dust, and gas bound together by gravity?

• Nebula
• Galaxy
• Cosmology
• Gravity

What is a large cloud of dust and gas where new stars are formed or stars explode?

• quasar
• black hold
• supernova
• nebula

What is the study of the origin, structure, and future of the universe?

• Cosmology
• Cosmetology 
• Astronomy
• Botony