Strong winds from a nearby dying star may have injected radioactive material into the early Solar System, according to a new model of star death.
The findings challenge the theory that radioactive isotopes trapped in meteorites from the dawn of our Solar System originated in a supernova. They also shed light on the origins of water on Earth, says a study in the journal Meteoritics and Planetary Science, and may help astronomers predict how common water is on other planets.
“Milk production at a dairy farm was low so the farmer wrote to the local university, asking help from academia. A multidisciplinary team of professors was assembled, headed by a theoretical physicist, and two weeks of intensive on-site investigation took place. The scholars then returned to the university, notebooks crammed with data, where the task of writing the report was left to the team leader. Shortly thereafter the farmer received the write-up, and opened it to read on the first line: “Consider a spherical cow in vacuum… .”—Spherical cow - Wikipedia, the free encyclopedia
The best candidate yet for a mid-sized black hole, bigger than the BHs created by collapsing stars but smaller than the holes at the centers of galaxies. Note that we don’t have proof that this is a mid-sized BH, just that this is as close as anyone has come to finding one.