How to Spot Small Black Holes That Can Pass Through the Solar System
Black holes about the size of a hydrogen atom may be careening into the solar system without being noticed. But […]
Space
Meet Porphyrion, the largest pair of black hole jets ever seen
The opposing fountains of plasma and particles spanning 23 million light-years are the longest pair of black hole jets ever
Betelgeuse has a small companion star hidden in plain sight
Betelgeuse, Betelgeuse! The red supergiant that marks Orion’s left shoulder may have a tiny, unseen companion. Two independent studies found