Hubble's image of NGC 3603 reveals a young star cluster and a cavity formed by hot blue stars in surrounding gas and dust. The image shows WR 25 and Tr16-244, massive stars in the Trumpler 16 cluster ...
Just like volcanologists monitor volcano activity to predict eruptions, astronomers can monitor stars to predict explosions.
It centers around the Hubble constant—the measurement of how fast our universe is expanding—which comes out as two different numbers when calculated two different ways, even though those numbers ...
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