Oldest material on Earth discovered
- Update Time : Tuesday, January 14, 2020
- 227 Time View
Scientists analysing a meteorite have discovered the oldest material known to exist on Earth.
They found dust grains within the space rock – which fell to Earth in the 1960s – that are as much as 7.5 billion years old.
The oldest of the dust grains were formed in stars that roared to life long before our Solar System was born.
A team of researchers has described the result in the journal Proceedings of the National Academy of Sciences.
Scientists analysing a meteorite have discovered the oldest material known to exist on Earth.
When stars die, particles formed within them are flung out into space. These “pre-solar grains” then get incorporated into new stars, planets, moons and meteorites.
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