One of the oldest stars in the universe was hidden in the Milky Way.
The breathtaking discovery of astronomers took place about 2,000 light-years from Earth.
The astrophysical journal A new study finds the tiny, 13.5 billion year old red dwarf.
Apparently it contains hardly any heavy elements.
It consists of almost untouched clouds of material left over shortly after the Big Bang.
The star is only one-seventh of the mass of the sun.
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"Our sun is probably descended from thousands of generations of short-lived massive stars that have lived and died since the Big Bang," said lead author Kevin Schlaufman of Johns Hopkins University.
"The most interesting thing about this star, however, is that perhaps it had only one ancestor that distinguished it and the beginnings of everything."
The star was called 2MASS J18082002-5104378 B for a short time.
"This discovery tells us that the very first stars in the universe may not have been all the massive stars that died long ago," astrophysicist Andrew Casey of Monash University told ScienceAlert.
"These ancient stars could be formed from very small amounts of material, which means that some of these relics from the post-Big Bang era may still exist today. This gives us a new point of view for star formation in the early Universe! "
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