Iron teeth aren’t unique to these reptiles — beaver teeth get their toughness from iron-infused enamel, says paleontologist Aaron LeBlanc of King’s College London. But in Komodo dragons, the iron is ...

Menstruation can be messy and uncomfortable, often due to leaky pads, tampons and cups. A new alginate-based powder may solve that problem. The material, which solidifies menstrual blood by turning it ...

The discovery of 22,000 previously unseen moonquakes, plus a new idea of what causes them, could help us better prepare for trips there.

NASA’s Perseverance rover has bagged its first hint of ancient microbes on Mars. “We’re not able to say that this is a sign of life,” says Perseverance deputy project scientist Katie Stack Morgan of ...

Polaris is about five times as massive as the sun, new observations reveal. That’s around 50 percent heavier than what an earlier study found.

The hint of fog marks a new way to observe neutrinos, but points to the beginning of the end for this type of dark matter detection.

There were no new HIV infections among adolescent girls and young women taking a new PrEP formulation, a twice-yearly shot of the drug lenacapavir.

A faster way to figure out what bacteria is causing a potentially deadly bloodstream infection could let doctors treat it more quickly and efficiently.

Instead of sinking from the surface, some deep-sea oxygen may be created by battery-like nodules that split water into hydrogen and oxygen.

Scientists made the known element 116 with a beam of titanium atoms, a technique that could be used to make the undiscovered element 120.

Rocky planets around fiery stars could hide their water for later use, but it takes 3 to 8 times the amount in our world’s oceans to end up Earthlike.

Brief blasts of light might make some materials into fleeting superconductors. Magnetic measurements strengthen the case for this controversial claim.