Alex Antropov on Pixabay

Scientists recently identified the oldest material on Earth, stellar dust that is 7 billion years old, tucked away in a massive meteorite that hit our planet half a century ago.

These presolar grains were trapped in the universe by dying stars and eventually ended on Earth in an asteroid that dropped it in 1969 in Australia.

Morten Remar spoke (in Danish) with astronomer Christoffer Karoff from the Geoscience Center at Aarhus University to get an explanation of the discovery and what it means for our knowledge of the formation of the solar system.

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Additional information (in English):

• Ancient stardust in meteorite is older than Earth

• 7 billion-year-old stardust is oldest material found on Earth

Science Stories is supported by the Novo Nordisk Foundation.