Science

A 13,600-year-old mastodon skull is unearthed in an Iowa creek
The University of Iowa’s Office of the State Archaeologist said a 12-day excavation yielded “several mastodon bones,” primarily from the skull. Mastodons are distant cousins of elephants.
What to know about Monday's blue supermoon
The next blue supermoon will not happen until 2032, but supermoons occur more frequently.
The world's largest iceberg is stuck twirling in an ocean vortex
Iceberg A23a — equivalent to the size of Rhode Island — has been near the South Orkney Islands since January, completing one full rotation every 24 days or so.
Mars and Jupiter get chummy in the night sky. The planets won't get this close again until 2033
Mars and Jupiter are cozying up in the night sky for their closest rendezvous this decade. They'll be so close Wednesday, at least from our perspective, that just a sliver of moon could fit between them.