In 1933, Swiss astrophysicist Fritz Zwicky was observing the Coma Cluster — a massive congregation of galaxies about 300 million light-years away — when he noticed something odd. The galaxies were swirling around each other far too fast. According to the visible matter in the cluster, they should have flown apart long ago. “There must […]
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The stars in the sky seem to shine forever, but they too are subject to lifespans determined by their mass and internal physics. Some last for billions of years and others are transitory in comparison, with far shorter lifetimes. Regardless of duration, all stars survive by maintaining a balance between two competing forces: the inward […]
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One of the most powerful tools the world knows when it comes to measuring the interstellar is the Hubble Space Telescope. With over a billion pictures of weird and interesting phenomena happening around the universe within its grasp, the Hubble is currently working on a much more large-scale mission – determining how quickly our universe […]
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