Astronomy Flashcards

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0
Q

Asteroid

A

A small rocky body that revolves around the sun.

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1
Q

Meteorite

A

A meteor that passes through Earth’s atmosphere without burning up completely.

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2
Q

The Big Bang Theory

A

The theory that states that the universe began with a tremendous explosion.

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3
Q

The Milky Way

A

Our galaxy

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4
Q

Sputnik

A

The first man made object in space. It started the space race.

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5
Q

Reflecting Telescope

A

A telescope that uses curved mirrors to gather and focus light.

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6
Q

Black Hole

A

An object with more than 3 solar masses squeezed into a ball only 10 kilometers across whose gravity is so strong that not even light can escape.

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7
Q

Axis

A

A straight line about which a body rotates.

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8
Q

Rotation

A

The spinning motion of a body on it’s axis. For the Earth, this is one day.

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9
Q

Supernova

A

The death of a large star by explosion.

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10
Q

Comet

A

A small body of ice, rock, and cosmic dust, loosely packed together, that gives off gas and dust in the form of a tail as it passes close to the sun.

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11
Q

Constellation

A

A section of the sky that contains a recognizable star pattern.

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12
Q

NASA

A

National Aeronautics and Space Administration

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13
Q

Ellipse

A

A closed curve in which the sum of the distance from the edge of the curve to two points inside the ellipse is always the same.

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14
Q

Solar Eclipse

A

An event in which the shadow of the moon falls on the Earth’s surface.

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15
Q

What’s a lunar eclipse?

A

An event in which the shadow of the Earth falls on the moon.

16
Q

Who was the first person in space?

A

Yuri Gagarin

17
Q

Who was the first American in space?

A

Allen B Shepard

18
Q

Who was the first person to orbit the earth

A

John Glen

19
Q

Who was the first person on the moon? What did he say?

A

Neil Armstrong, and he said “this is one small step for man, one giant leap for man kind

20
Q

What was the name of Neil Armstrong’s space craft?

A

Apollo 11

21
Q

Who thought the earth was the center of the Milky way?

A

Ptolemy

22
Q

Who figured out the sun is in the middle of our galaxy?

A

Copernicus

23
Q

What person used a telescope to study celestial bodies?

A

Galileo