We live on the planet earth. It is part of our _____________.

There are many communication________________ in orbit round the earth.

There are a lot of _____________ in orbit around the sun. they are big rocks.

A _____________ is a very large group of stars and planets.

An_____________ observes the stars and planets through a telescope.

A __________ can be seen as a bright light in the sky when it is dark.

A _____________ is a bright object in space that has a tail of gas and dust.

A ______________ in space is an area where gravity is so strong that everything around it is pulled into it.

An ___________ is a fictional species that is believed to exist somewhere in space.