Science & ClimateScienceDaily•1 min read•10/27/2026 (2h ago)

James Webb discovers a scorching lava planet with a “giant sunscreen”

James Webb discovers a scorching lava planet with a “giant sunscreen”
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A scorching lava planet 280 light-years away has surprised astronomers by apparently maintaining a thick atmosphere despite conditions that should have stripped it away billions of years ago. James Webb Space Telescope observations suggest that TOI-561 b reflects about 75% of incoming starlight, possibly because of mineral clouds that act like a giant sunscreen. The planet...

Key Takeaways

  • A scorching lava planet 280 light-years away has surprised astronomers by apparently maintaining a thick atmosphere despite conditions that should have stripped it away billions of years ago.
  • James Webb Space Telescope observations suggest that TOI-561 b reflects about 75% of incoming starlight, possibly because of mineral clouds that act like a giant sunscreen.
  • The planet may also be continually replenishing its atmosphere through gases released from a global ocean of molten rock.

A scorching lava planet 280 light-years away has surprised astronomers by apparently maintaining a thick atmosphere despite conditions that should have stripped it away billions of years ago. James Webb Space Telescope observations suggest that TOI-561 b reflects about 75% of incoming starlight, possibly because of mineral clouds that act like a giant sunscreen. The planet may also be continually replenishing its atmosphere through gases released from a global ocean of molten rock.

Original Publisher Attribution

This summary was curated from ScienceDaily.

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James Webb discovers a scorching lava planet with a “giant sunscreen” — Loop60