A rare star in our galaxy is racing across the sky at an impressive ~1.3 million mph. With its speed and unusual trajectory, this L subdwarf could be fast enough to potentially escape the Milky Way! It’s the first hypervelocity, very low mass star discovered. Located just 400 light-years away, it’s also the nearest known hypervelocity star to Earth.
Astronomers have discovered 21 rare pairs of “dark” neutron stars orbiting Sun-like stars. Though inactive and emitting no bright light, a Caltech-led team uncovered these hidden neutron stars by detecting the wobble of their Sun-like companions as the neutron stars tugged at them – a first!