'Star Trek: Discovery' Season 4, Episode 6 keeps the tempo up

Best star projectors: Indoor views of the night sky

The Aftermath of Neutron Star Collisions – Where Heavy Elements Are Made

Using data from several telescopes worldwide, a team of astronomers discovered at least 70 free-floating planets -- planets that wander the cosmos without orbiting a star -- in the Milky Way, marking the largest group of rogue planets ever found.