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Un team di cosmologi, attraverso una simulazione numerica, ha dimostrato che l’esistenza della misteriosa e sfuggente componente dell’universo è compatibile con il comportamento osservato delle galassie
Our deepest galaxy surveys can reveal objects tens of billions of light years away, but even with ideal technology, there will be a large distance gap between the farthest galaxy and the Big Bang. Image credit: Sloan Digital Sky Survey (SDSS).
Sometime around 737 AD, in the luminous constellation Cygnus, in the vicinity of a star known as KIC 8462852, something very strange happened. No one knows what. Here on Earth, 1,280 light years away, the mystery has only deepened as scientists have watched it unfold.
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Another theory -- perhaps you’ve heard? -- is that it’s the work of an alien civilization. The idea is that an advanced race of extraterrestrials might be using technology (very large technology) to capture energy from the star, or conduct cosmic business of some other kind. It’s not an especially likely scenario. But it can’t be ruled out yet, either. Obviously, it would be awesome.
NASA’s Discovery mission to a smashed protoplanet core will reach its target four years early after a new launch date. Instead of launching in 2023, the craft will now in launch in 2022 and will reach its target, the asteroid Psyche, by 2026.