We've seen helium baked off a rocky exoplanet's atmosphere
Most of the gas in the Universe is a mixture of hydrogen and helium. It's thought that the initial atmospheres of most planets also start out that way.
Reported by 1 outlet — Ars Technica. See all sources ↓
Most of the gas in the Universe is a mixture of hydrogen and helium. It's thought that the initial atmospheres of most planets also start out that way. However, over billions of years, as planets evolve, the composition of their atmospheres may shift. Hydrogen can react with other chemicals, and both it and helium can be lost to space.
Read the full report at Ars Technica ↗
Why it matters
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- What's the story?
- Most of the gas in the Universe is a mixture of hydrogen and helium. It's thought that the initial atmospheres of most planets also start out that way.
- How widely is it covered?
- 1 outlet, average source rating 7.0/10.
- When was it last updated?
- 3m ago.
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We've seen helium baked off a rocky exoplanet's atmosphere
Sources1TypeCoverageArs Technica