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Discovery of 9 lithium-rich stars brings evidence of their origins

Stars are usually made of hydrogen and some traces of helium. Some of them have more lithium than others. In old stars it can be a result of thermonuclear reaction. But astronomers also found several young lithium-rich stars. Those didn't have enough time to create their own lithium. According to a new study the lithium in young stars must come from the surrounding material that was caught by the star’s gravity.

Young stellar object

How stars are born
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