It's called Gliese 710 and it's currently more than 60 light years away. But it's moving directly towards us and should be here in about 1.3 million years.
Apparently that's been known for some time, but new calculations indicate that it will pass much closer to the Sun than thought, less than 0.2 light years (77 light-days) distant at closest approach. That's far enough away that it isn't a threat to hit the Earth and whatever life is living here in that distant day, but it might seriously destabilize the Oort Cloud and send many comets and whatever other small bodies are out there into the inner solar system. Some of these might potentially collide with Earth in a mass-extinction event.
http://www.gizmodo.com.au/2016/12/incomi...s-our-sun/
Apparently that's been known for some time, but new calculations indicate that it will pass much closer to the Sun than thought, less than 0.2 light years (77 light-days) distant at closest approach. That's far enough away that it isn't a threat to hit the Earth and whatever life is living here in that distant day, but it might seriously destabilize the Oort Cloud and send many comets and whatever other small bodies are out there into the inner solar system. Some of these might potentially collide with Earth in a mass-extinction event.
http://www.gizmodo.com.au/2016/12/incomi...s-our-sun/