Tag: extraterrestrial life
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The first known interstellar visitor to the Solar System
[ This blog is dedicated to tracking my most recent publications. Subscribe to the feed to keep up with all the science stories I write! ] Cosmic Driftwood What a floating rock can tell us about life in the rest of the universe Last October, we had the first known interstellar visitor to the Solar…
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If we could only build one huge observatory….
[ This blog is dedicated to tracking my most recent publications. Subscribe to the feed to keep up with all the science stories I write! ] Q: Suppose we can only build one big telescope. Should we look for life among the stars or the origins of the universe? I participated in an experts’ roundtable…
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Living planets in a stellar graveyard
When our Sun runs out of nuclear fuel, it will shed its outer layers, while what’s left of the core will remain as a white dwarf: an object the size of Earth, but far more massive. During the final stages of the Sun’s life, Earth is likely to perish as a habitable world, but that’s…
