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Giant Impacts Help Rocky Planets Retain Their Atmospheres

For a long time, planetary scientists thought that giant impacts drove a young planet's atmosphere away into space with all the heat they generated. But it turns out the opposite could be true. The mass a young planet gains through a giant impact increases its gravitational hold on its atmosphere.

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AuthorsEvan Gough

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SourceUniverse Today
Feedrss-2.0
Provider data as ofnot stated
First observed here4 Nov 2026, 12:00 EST
Last observed here5 Nov 2026, 12:00 EST
In latest snapshotYes
Record identifier6d90c63e-132e-5643-b489-db3c57c59d77

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What this site observed; not complete provider history.

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