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Earth and Gravity
13 cards·by Kaylee
the distance light travels in a year
light year
a cloud of gas and dust in which new stars form
nebula
a gigantic explosion that occurs near the end of a star
supernova
a point in space where there is such a strong gravity that nothing within a certain distance can
escape
black hole
a huge system of stars, dust, and gas held together by gravity
galaxy
a group of stars that form a pattern
Constellation
sun and all the bodies that orbit it
Solar system
one full orbit of an object
Revolution
an imaginary line around which the earth rotates
Axis
a frozen mass of ice and dust orbiting the sun
Comet
one whole spin of an object
Rotation
a rocky mass that revolves around the sun
Asteroid
an object in orbit around another object
Satellite