This cosmic question mark, seen in 2024, is courtesy of galaxy cluster MACS-J0417.5-1154, which is so massive that it is ...
Physicists have finally confirmed a phenomenon that sounds like pure science fiction: waves that appear to bounce off a sudden change in time rather than a surface in space. The effect, known as a ...
While the US is attempting to come up with CLT, researchers from the Purple Mountain Observatory in Nanjing and the ...
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