what do you call our 9 planets, suns and moons?

Nebulas are found in the regions of space...

Nebulas are a mixture of gases and...

which elements are found in the gases of Nebulas?

The matter of a nebula is held together by...

How do we measure the energy of the particles in an object?

Gravity and pressure keep a nebula from collapsing by...

What 2 things can mess up the balance of gravitational pull and outside pressure in a nebula?

When a nebula collapses, small parts in the cloud get pushed together. They are called...

What is a solar nebula?

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