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Astronomers find the oldest known star in the universe

August 12, 2013

digitaljournal.com

A Digitized Sky Survey image of the Methuselah Star, the oldest known star in our galaxy.Scientists have discovered Methuselah, what is being called and “impossible star,” which appears to be potentially older than the universe.
The Milky Way’s own Methuselah star, formerly knows as HD 140283, seems to be between 14 to 16 billion years old, which is providing a bit of a continuity error in science, since most researches believe the universe to be 13.8 billion years old. However, a team of scientists have worked to try and come up with an explanation for the paradoxical star, accounting several factors such as its distance from us, its brightness and its structure. These scientists have been able to place the star back to approximately 14.5 billion years— still making it older than the universe. But with a margin of error of 800 million years, this can put the star at 13.7 billion years old, possibly making it younger than the universe (but just barely). Discovered over a century ago, the ancient star was found to be moving more than an astonishing 800,000 mph (1.3 million km/h) relative to our own galaxy. Originally born in a dwarf galaxy, which the Milky Way “ate” 12 billion years ago. Now the star, which has become more of a red giant, is a distant 190.1 light-years away in the Libra constellation and continues a long orbit around our galaxy.

 

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