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.
A comprehensive, 21-year analysis reconciling four different techniques. A word about this year's sea ice extent. And why is info about Antarctica so hard to come by?
The astronomers say their technique should let others make ground-based characterizations of dozens of super-Earths, expected to be found in space surveys.