There are a number of conflicting theories, but the current most likely explanation (and you should know that different explanations become the "most likely" every time we learn something new and unexpected about the Moon) is that the Moon formed from the debris left over when a small planet - perhaps the size of Mars! - crashed into the proto-Earth and merged with it.
This provides some possible reasons for a couple of interesting facts. For example, the Earth is the densest planet, and we believe that the iron core of the Earth is larger than the cores of the other planets. So the iron core of this other planet probably merged with the core of the proto-Earth.
The impact would have shattered both planets, and the Earth, we think, formed out of the wreckage. Debris blasted into space might have come together to form the Moon.
However, there are some problems with this theory; none of the mathematical models of how such a collision might have occurred actually produce anything like the Moon. So there are some things - probably amazing things! - that we don't know about how the Moon formed.
a large object struck Earth, and ejected material from the collision combined.
yes sometimes
prokataryotic and autotrophic
red giant
When a neutron star is formed, protons and electrons are crushed, they collide and become neutrons.
Scientists think that Barbados was formed about almost a million years ago.
When science was gored
the Bryce canyon was formed over 70 million years ago.
Biological molecules were trapped in molecular bubbles.
4.5-5 billion years old
Scientists believe that stars form from clouds of gas and dust in space, called nebulae. When these clouds become dense enough, gravity causes them to collapse and form a protostar. As the protostar gathers more material, its temperature and pressure increase until nuclear fusion ignites, turning it into a full-fledged star.
a large object struck Earth, and ejected material from the collision combined.
Scientists do not make "star fuel," and stars, for the most part are not fueled by carbon, anyway. Stars are mostly fueled by hydrogen which was formed in the very early history of the universe, shortly after the "Big Bang." To learn more about how stars formed and what make them "burn", you should go to a website like http://www.kidsastronomy.com/
There is a theory that scientists came up with about how the universe was formed. It is called the Big Bang theory. This may sound familiar because there a sitcom named after it. The theory states that there was a star that was getting extremely hot. The star then exploded. (When a star explodes it is called a supernova.) After the star exploded, there was a spinning disc of very hot gases and rocks. In the center was a ball of light, heat and gas. This is the Sun. While the disc was still spinning, over the course of millions of years, the rocks and gases in the disc formed into spherical clumps, cooling down over the long period of time. These are called planets. That is just one theory that scientists have. It is also the most reasonable one.
Rigel is a blue-white star wich indicates that is a very hot star. you might think red stars are the hottest but no, the hottest are blue-white.
At the same time that the Earth (and the other planets) formed : 4.5 billion years ago.
Scientists think that protobionts formed by accidental natural causes.