Ch.26 Earth and Space

Naturally made objects outside the Earth's atmosphere

A very large collection of stars, held together by gravity, and isolated from other such systems by large areas of space

a group of stars

A group of planets, asteroids, comets and other celestial bodies in orbit around a star, and held together by that star's gravity

Giant luminous balls of hot gas, giving out heat and light, eg. our sun

A celestial body orbiting a sun, that is big enough and has enough gravity to pull themselves into a spherical shape, and clear their orbit of other objects

A small planet orbiting a sun, that doesn't meet all the requirements to be called a planet

A natural satellite of a planet. A satellite is an object that orbits a planet

Giant rocks that orbit a sun but are too small to be a planet; many form the asteroid belt between Mars and Jupiter

Mixtures of frozen gases, ice, dust and small rocks, orbiting the sun in a large eclipse

Rocks that burn up in the Earth's atmosphere. Bits may fall to Earth as meteorites

Not a hole but caused when a Giant Star collapses in on itself-huge mass in a tiny area. Gravity is so strong not even light can escape!

The only comet that can be seen with the naked eye twice in one person's lifetime