Science
Don't miss: Watch Saturn shine and Halley’s Comet debris streak across the sky
October skywatchers can see Saturn at opposition, catch meteors from Halley’s Comet during the Orionid peak, and watch the Moon sweep past the…
Topic
Moon
2 stories
Science
This mysterious hole on the Moon may open into a giant cave
NASA has selected the GIMLI project to investigate whether the Marius Hill Pit opens into a vast underground cave or lava tube.