What we learn from meteorites
The most important clues about the early stages of the solar system come from meteorites. Some meteorites are older than the formation of the Earth. They reveal how smaller bodies coalesced to form planets, and how our own planet developed after it had formed.
Keywords: Astronomy, Meteorites, Planets--Origin, Solar System--Origin
In 1969, a two-ton meteor broke up in the atmosphere above the Mexican village of Allende.
This is the Camel Donga stony meteorite, which is made of basalt.
A third relic of the ancient cosmos is this iron meteorite, Mungindi.