- What’s to blame for Canada’s wildfires?
The inferno that sent toxic smoke billowing toward the United States won't be the last. Officials are now battling both the wildfires and misinformation.
- Struggling with a hard life choice? AI future selves have tips
A chat with aged avatars of future selves can guide people paralyzed by tough decisions. The question is what information to feed the bots.
- What kinds of black holes exist — and how are they different?
Scientists have identified four types of black holes, classified mostly by their masses. But these mysterious objects continue to challenge our understanding of the universe.
- Different moon rocks tell different tales about a long-ago bombardment
Prior moon rock samples, including from Apollo, seem heavily influenced by one impact. The farside samples tweak the story.
- The golden age of language was a few thousand years ago
A few millennia ago, people worldwide may have spoken or signed up to 10 times as many languages as they do today.
- Watch an orca ram into a sunfish so hard it explodes
This strategy expands orcas’ already broad repertoire for dispatching different types of prey.
- A rare 3-D snake fossil is spilling secrets of its unusual lifestyle
A new snake’s unique head anatomy suggests early snakes were even more diverse than thought. This one was a rare burrower.
- A newly found world blurs the boundary between planet and moon
The object orbits a brown dwarf that orbits a star, and astronomers aren’t sure if it’s a planet, a moon — or something else entirely.
- Measles cases in the U.S. hit a new 34-year high
The U.S. hasn't seen measles numbers like this since 1992. An epidemiologist explains what's driving the surge.
- This humpback whale hunting strategy has been out of sight — until now
Scientists documented humpback whales hunting together at the seafloor, coordinating their arrival to scoop up sand lances.