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Results tagged with comets
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user 34443
Icy bodies that usually consist of methane, water, and other materials that originate from beyond the jovian planets, and occasionally fall into the inner solar system giving off a massive tail as material is boiled off.
3
votes
2
answers
199
views
Can a single impact event trigger a runaway greenhouse?
Somewhat related to this question: Is the Earth going to evolve towards Mars' fate or Venus' fate?
Human civilization may be fragile, but life itself is extremely resilient, with extremophiles and mic …
- 1,201
3
votes
1
answer
144
views
Can a supernova or a close passing star create a transient sun gravity focus "habitable zone"?
This question was inspired by the previous question Would a black hole passing next to a star create a deadly focal point due to gravitational lensing?. I understand, as gravity also acts on light, th …
- 1,201