The Hubble Space Telescope has glimpsed the most distant single star it's ever observed, glimmering 28 billion light-years away. And the star could be between 50 to 500 times more massive than our sun ...
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Hubble images taken 25 years apart show big changes in iconic Crab Nebula
Astronomers reveal new insight into an iconic supernova remnant's evolution, structure and pulsar-driven growth over 25 years ...
Astronomer Robert Kirshner investigates some of the universe’s biggest questions: What happens when a star explodes? Is the universe still expanding? He recently added a new mystery to the list: Is ...
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