As the climate warms up, cool summer evenings are becoming a distant memory.
Fossils preserved in sap offer an astonishingly clear view of the distant past, but they come at a high price.
The universe is expanding, but no one can agree on exactly how fast.
For a time, it looked as though the planet’s defining feature might be on the verge of extinction.
Here are seven ways of understanding the IPCC’s newest climate warning.
Emissions of mercury have declined, but levels in fish could still increase thanks to overfishing and a changing climate.
Sometimes stem cells in the jaw don’t work quite like they’re supposed to.
High-tech agriculture would keep far-flung astronauts alive, but making something delicious would keep them happy.
Snails in Hawaii are disappearing at a faster rate than any other animal on the planet. Meet the scientists fighting for their survival.
The story of CTVT—a contagious cancer that spreads from dog to dog—gets weirder all the time.
When Kevin Langergraber heard a scream in the rain forest, he ran to see what was happening.
The Federal Reserve should act aggressively to reduce that risk, a leading economic historian argues.
Democrats have figured out how to talk about climate change with urgency and air real differences among the candidates’ ideas for dealing with it.
Fleeing to “higher ground” isn’t an adaptation policy.
A new study suggests that evidence for microbes found on placentas was the result of lab contamination.
In Australia, one cat seems to have destroyed an entire bird sanctuary.
Steve Bullock just wasn’t right.
Humanity needs to get better at knowing how to get better.
It involves a spiky, silicone tongue.
Using DNA, genealogists finally confirmed the identity of the “Belle in the Well,” found 38 years ago.
The single-celled menace rarely infects humans. That’s what makes it so hard to treat.
Soon, if no mission returns to the moon, no one on Earth will have set foot on another world.