J1649+2635 is one of only four galaxies known to have both spiral arms and jets of subatomic particles propelled outward from its core at nearly light speed.
Galaxies in thread-like filaments within the cosmic web have a much higher chance of actively forming stars. So galaxy evolution was accelerated in the filaments.
The astronomers say their technique should let others make ground-based characterizations of dozens of super-Earths, expected to be found in space surveys.
The story you've been waiting for. The spacecraft images are fascinating, and the details of Comet Siding Spring's exceedingly close pass of Mars might surprise you.
"Eye of Sauron" is a nickname for an active supermassive black hole at the core of a distant galaxy. Researchers measured its distance at 62 million light-years.
Black holes, worm holes, exoplanets, time dilation. Three astrophysicists discuss them all in a presentation of the science behind the film Interstellar.
Scientists have long thought the moon's volcanos stopped erupting a billion years ago. But dotting the lunar landscape are some remarkably fresh volcanic features.