Brightest Gamma-ray Burst Shines Light on Milky Way Structure

A dual quasar shines light on two supermassive black holes on a collision course inside a galaxy merger

Looking at magnets in the right light

50 years ago today, the Pioneer 11 spacecraft set sail for the outer solar system. And 4 million years from now, the probe — which carries a gold-plated plaque meant to help identify humanity’s place in the cosmos — will pass very near the star Lambda Aquilae, located some 125 light-years away.