Icy Exocomets Around a Distant Star Help Explain Earth's Water

September 08, 2026 Universe Today

Icy Exocomets Around a Distant Star Help Explain Earth's Water
By Evan Gough (https://ift.tt/QehHqYX)

This illustration shows the PDS 70 system, including its two exoplanets. Comets are shown approaching the star, releasing volatiles that sublimate as the comets warm. Image Credit: Aline Novais

Did icy comets deliver water to the young Earth? That idea won't go away. Now, astronomers at Lund University in Sweden have found evidence of exocomets orbiting a young star named PDS 70. The observations suggest that these comets are delivering water to that system's inner regions.

September 9, 2026 at 01:59AM
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