macmankev:

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.