Space terminology

Find a definition of word STAR

• a massive, luminous sphere of plasma

• a small rocky body orbiting the sun

• a small rock or particle in space

• a meteoroid that reaches Earth's surface

Planet is ...

• a massive, luminous sphere of plasma

• a celestial body orbiting a star

• a celestial body that orbits a star but does not clear its orbit (e.g., Pluto)

• a body that orbits a planet

Asteroid is ... .

• a small rocky body orbiting the sun

• an icy body that releases gas and dust as it nears the sun

• a small rock or particle in space

• a meteoroid that burns up in Earth's atmosphere

Moon (Natural satellite) –

• a massive system of stars, gas, and dark matter

• a cloud of gas and dust in space

• – a region of space with gravity so strong that nothing can escape

• a body that orbits a planet

Galaxy –

• a cloud of gas and dust in space

• a massive system of stars, gas, and dark matter (e.g., the Milky Way)

• a very bright and distant active galactic nucleus

• a highly magnetized rotating neutron star emitting beams of radiation

Black hole –

• the explosion of a massive star

• a region of space with gravity so strong that nothing can escape

• the stretching of light waves as objects move away in space

• when Earth’s shadow covers the Moon

Rocket is ....

• a vehicle that travels into space

• an object that orbits a planet

• an unmanned spacecraft that explores space

• a habitable structure in space for astronauts