The sun may have started its life with a binary companion

I thought this was interesting.

https://phys.org/news/2020-08-sun-li...companion.html

Quote:

A new theory published today in the Astrophysical Journal Letters by scientists from Harvard University suggests that the sun may once have had a binary companion of similar mass. If confirmed, the presence of an early stellar companion increases the likelihood that the Oort cloud was formed as observed and that Planet Nine was captured rather than formed within the solar system.

I know the Sun is unusual in being a solitary star, so this would make sense.

via International Skeptics Forum https://ift.tt/2QxDboh