Oldest star provides hints about first supernovas

By Ashley Yeager, 13:53 PM February 10, 2014

Studying one of the oldest known stars in the universe has given astronomers a closer look at what happened in the universe more than 13.7 billion years ago.

Named SMSS J031300.362670839.3, the star sits 6,000 light-years from Earth toward the outskirts of the Milky Way and lacks iron. Scientists thought that the high-energy explosions, or supernovas, of the universe's first stars would have seeded galaxies with this heavy element. But the old star’s chemical composition and that of four other...

Source URL: https://www.sciencenews.org/blog/science-ticker/oldest-star-provides-hints-about-first-supernovas