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How did the moon form NASA?

The moon was likely formed after a Mars-sized body collided with Earth and the debris formed into the most prominent feature in our night sky. It is the only celestial a body beyond Earth that has been visited by human beings. Distance from the Earth: About 239,000 miles.

What was the frost line of the solar system?

In astronomy or planetary science, the frost line, also known as the snow line or ice line, is the particular distance in the solar nebula from the central protostar where it is cold enough for volatile compounds such as water, ammonia, methane, carbon dioxide, and carbon monoxide to condense into solid ice grains.

How did the solar system form step by step?

Formation. Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a supernova. When this dust cloud collapsed, it formed a solar nebula—a spinning, swirling disk of material.

What are the 4 stages of terrestrial planet formation in order?

After becoming distinct planets, they went through four stages of formation: Differentiation, Cratering, Flooding and Surface Evolution.

How many jovian planets are there?

four jovian planets

What keeps the sun from collapsing under its own gravity?

What keeps the Sun from collapsing under its own gravity? Hydro static Equilibrium (Gravitational): The outward push of gas pressure balances the inward pull of gravity. When hydrogen fuses in the core of the Sun, four hydrogen nuclei are combined to form one helium nucleus.

What force will stop the collapse of the sun?

The force which they exert is described by the pressure; the internal pressure is higher than the external pressure, so the Sun is held up against gravitational collapse.

What force keeps the sun from collapsing?

internal pressure