Outside the Solar System

Blue giant stars are the hottest.

Stars are all the same.

There are billions of objects outside our solar system.

The planets in our solar system are in deep space.

Microscopes help us see objects in the night sky.

Supernovas look like fireworks.

Stars look like they twinkle, but it is our atmosphere that makes it look like they are twinkling.

A star can last for billions of years.

Telescopes help scientists see into deep space.

There are only a few stars in a cluster.

The bigger the star the less light it has.

There are thousands and thousands of stars in a cluster.

Galaxies are in deep space.

Our Sun is a yellow dwarf.

The sun is 1 light year away from the Earth.

Some points of light are huge groups of stars called galaxies.

Stars twinkle.

All stars are balls of gas.

People have landed on Mars.

When a spaceship leaves the solar system it is bumpy because of the winds.

There are stars that are called dwarf stars.

There are telescopes orbiting the Earth.

Scientist use a measure called a light-year.

Red super-giant stars are the hottest.

The lights you see in the sky at night are?