Space


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Mars is a pretty wild and wonderful place, and an image posted to the NASA science blog and Astronomy Photo of the Day this week is a brilliant example. It shows what appears to be a mountain… but completely hollowed out.   While it’s not actually the product of some strange mining experiment, the formation
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A mysterious comet identified last year as only the second-ever known interstellar object in our Solar System inevitably prompted some big scientific questions. Chief among them: what, if anything, can it tell us about the hypothesised existence of extraterrestrial intelligence out there in space?   Well, if the object known as 2I/Borisov holds alien secrets,
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Picture the space around Earth filled with tens of thousands of communications satellites. That scenario is slowly coming into being, and it has astronomers concerned. Now a group of astronomers have written a paper outlining their detailed concerns, and how all of these satellites could have a severe, negative impact on ground-based astronomy.   SpaceX and
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A large asteroid whooshed past Earth last week, and mooned all of humanity in the process. As it approached Earth space, asteroid 2020 BX12 was under close observation. Clocking in at 200 to 450 metres across (656 to 1,476 feet), and moving at around 90,000 kilometres per hour (56,000 miles per hour), the space rock