The Conversation

Polluted dwarf star could hold the key to the origin of water on Earth

Author: The Conversation

Artist's view of a watery asteroid heading to a white dwarf star.ESA/Hubble, CC BY

Astronomers have discovered a white dwarf star with a polluted atmosphere that may shed light on where the water on Earth comes from and how much water there is outside our own solar system.

A major question in planetary science is whether the water on Earth was...

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