We’ve learned a lot about COVID-19 over the last five years, but big questions remain. Recent federal actions may hinder the disease’s management.

In the fifth episode of The Deep End, volunteers describe what it’s like to live with the stigma of depression and the treatments they seek for it.

Rising temperatures could reduce trees’ ability to photosynthesize. Scientists are trying to figure out just how close we are to that point.

AI medical benchmark tests fall short because they don’t test efficiency on real tasks such as writing medical notes, experts say.

Stand Up for Science rallies in Washington, D.C., and across the United States drew crowds of people worried about cuts to scientific funding.

Firefly Aerospace landed a craft safely last week, a first for a private company. But Intuitive Machines’ mission ended when its lander wound up on its side in a crater.

New brain-inspired hardware, architectures and algorithms could lead to more efficient, more capable forms of AI.

The excavation of bone tools at Olduvai Gorge in Tanzania expands the range of ancient hominids’ cultural innovations.

NASA’s Juno spacecraft identifies over 40 enormous lava lakes on Io, shedding light on the extreme volcanism sculpting Jupiter’s moon.

Understanding the genetics of Labrador retriever obesity may help dog owners mitigate their best friend’s weight gain.

On balconies and in backyards, Wi-Fi–enabled telescopes are connecting astronomy enthusiasts across six continents.

Chemists identify a single molecule that naturally tiles in nonrepeating patterns, which could help build materials with novel electronic properties.