Before vaccines, some parents intentionally exposed their children to the virus. In the internet age, that thinking is resurfacing.

CAR-T cell therapy is already a potent treatment for certain cancers. Now, a small study is showing early promise for managing HIV.

The work of Peter Aaby and Christine Stabell Benn has long been controversial. Until Robert F. Kennedy Jr. became US health policy chief, most vaccine scientists tended to ignore it. Now they can’t.

The discovery from the Trinity nuclear test site shows how extreme conditions can result in materials never before seen in nature or in the lab.

States across the US are looking to take major sources of pollution and use them to generate much-needed power.

On May 18, an asteroid about the size of Chicago’s Cloud Gate will fly four times closer to Earth than the moon.

While many brain-computer interface companies are focused on helping paralyzed people communicate, Motif Neurotech is targeting mental health disorders.

From toxic smoke and oil spills to rising emissions, poisoned soil, and damaged ecosystems, war can reshape the environment long after the fighting stops.

Isomorphic Labs president Max Jaderberg said at WIRED Health in London that the startup has built a “broad and exciting pipeline of new medicines.”

Bootstrap Bio and Manhattan Genomics, which were pursuing human embryo editing to prevent serious disease, have shut down.

Paterna Biosciences says it has determined the set of instructions needed to turn sperm-making stem cells into "normal, mature" sperm.

After scientists exposed wild fish to cocaine and a cocaine metabolite, they observed that, as in the lab, fish on cocaine do not act like normal fish.

Scientists have quantified what draws mosquitoes to people—which could help make better, life-saving bug traps.

After traveling a greater distance from Earth than any humans before them, the astronauts of Artemis II have safely returned home.

Entire space programs have been canceled after a failure in the reentry phase. In the final test for Artemis II, astronauts will travel at 32 times the speed of sound as they return from the moon.

Robert F. Kennedy Jr.’s sweeping changes to federal vaccine guidance are paused for now. But even if they’re reversed, lasting damage has already been done.

Splashdown for the Artemis II crew is scheduled for Friday evening, and NASA will livestream the historic homecoming.