All Stories
- Animals
‘Forever chemicals’ could be aging dolphins beyond their years
Common dolphins in New Zealand are biologically older than their calendar ages. Trace metals and “forever chemicals” may be to blame.
- Astronomy
New images reveal Betelgeuse’s buddy star
A century of hints has suggested the famed red supergiant had a star pal but seeing it amid Betelgeuse’s brightness has been hard — until now.
- Animals
Seals’ amphibious hearing developed a long, long time ago
Researchers scanned the ears of hundreds of marine mammals to deduce when pinnipeds evolved to hear well in both air and water.
- Paleontology
Spines of saber-toothed cats tell a tale of the doomed species
Remains pulled from the La Brea Tar Pits revealed deformed vertebrae and rare tumors, possible signs of inbreeding among now-extinct saber-toothed cats.
- Climate
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.
- Artificial Intelligence
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.
- Astronomy
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.
- Planetary Science
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.
- Science & Society
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.
- Animals
Watch an orca ram into a sunfish so hard it explodes
This strategy expands orcas’ already broad repertoire for dispatching different types of prey.
- Paleontology
A rare 3-D snake fossil is ssspilling sssecrets 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.
- Astronomy
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.
