Satellite An object that is sent into space and revolves around the Earth or another planet for the purpose of gathering information or communication.
Solar eclipse It is the total or partial obscuring of the sun by the moon when the Earth passes through the moon’s shadow.
Solar system The portion of our galaxy that orbits the sun. This includes the Earth, the other seven planets, dwarf planets, moons, asteroids and comets.
Star A large ball of burning gas in space that produces light, heat, ultraviolet light and X-rays.
Supernova A violent explosion that occurs upon the death of a star, causing it to suddenly become extremely bright for a few months.