Today’s paper describes a very weird variable star that blinked!
Mysterious long-timescale variations in the brightness of red giant stars have puzzled astronomers for a long time. The authors of today’s paper provide evidence that these variations are caused by a tiny brown dwarf orbiting the giant star.
Today’s paper searches for hot binary companions of blue straggler stars.
Today’s paper describes how we may have seen light from two black holes colliding with each other.