Google recently released this cool little educational tool/show off thing for Google Chrome. It’s the nearest 100,000 stars from Earth and you can scroll and zoom through this entire chunk of galaxy. Trippy.
Almost every simple definition of a galaxy would probably be something like “a collection of stars and star systems held together in a group”. But scientists have discovered that galaxies can contain almost nothing at all. Nothing but dust and dark matter.
There are plenty of binary star systems out there, but it’s often been thought that there’s an absolute minimum distance two starts can orbit each other before they just slam into each other and form a single star. But several pairs of new red dwarf stars are challenging that minimum distance.