GROUND BREAKING: The Hubble Telescope Spotted Vampire Stars

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When scientists looked at a cluster of ancient stars, they noticed a few that appeared younger than the rest. These stars are the same age as the others, yet they look younger. Like a vampire, these stars suck the life from others.


New observations from the Hubble Space Telescope have revealed the hidden hosts feeding vampirelike blue straggler stars, strange objects that appear to stay uncannily young-looking instead of growing into old red giant stars.


When an aging star exhausts most of its fuel, it balloons outward into a huge red giant. But in a cluster of stars that formed at the same time, some will look eerily young: While the stars' contemporaries are bulky and cooler, they remain trim with a hotter, bluer light as if they're getting infusions of new fuel. So blue straggler stars get their name because they "straggle" behind the typical star life cycle.




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