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Could a robotic mission capture biological ‘seeds’ a
We humans are always wondering whether we’re alone in the Universe. But what if we are one of a long line of species that were around long before our planet even existed? This intriguing idea, that li
Earth exists in a bubble. Our atmosphere forms a protective barrier between everything on the planet’s surface and the near-empty vastness of space. But it’s not the only bubble Earth sits inside. Bey
When comet 3I/ATLAS was discovered in July, on a one-way interstellar journey through our Solar System, Harvard astronomer Avi Loeb suggested it might be an alien spacecraft paying us a visit. Back in
A mosaic image of Enceladus created from data ...
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One of the most important features of extrasolar planets is whether they have an atmosphere or not. For astrobiology in particular, small, rocky planets blanketed with an atmosphere offer the best hop
