The 3I/ATLAS comet was first spotted in July near Jupiter after it entered our solar system from another universe. Here’s ...
Dark-energy evidence suggests the universe will end in a “big crunch” roughly 20 billion years from now. The universe is nearing the halfway point of what may be a 33-billion-year lifespan, according ...
How did the universe come into being? There are a multitude of theories on this subject. In a Physical Review Letters paper, ...
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