In 2014, a NASA telescope observed that the infrared light emitted by a massive star in the Andromeda galaxy gradually grew brighter. The star glowed more intensely with infrared light for around ...
Mira A is in the late stages of its life, a red giant swelling and losing mass as it prepares to fade into a white dwarf. While stars of this type routinely shed material, the sheer scale and symmetry ...
A massive star 2.5 million light-years away simply vanished — and astronomers now know why. Instead of exploding in a supernova, it quietly collapsed into a black hole, shedding its outer layers in a ...
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