Fraser Cain on Nostr: Researchers do twin studies on humans to track nature versus nurture. This also works ...

Researchers do twin studies on humans to track nature versus nurture. This also works in astronomy, with twin stars in main sequence binary systems formed from identical raw materials. They should have the same composition, but astronomers recently discovered that about one in twelve stars have different compositions in their atmospheres. Since these are mature stars, and their protoplanetary disk is long gone, the most likely explanation is that they consumed a planet.

https://www.eurekalert.org/news-releases/1037995