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A fossil found in Argentina shows that up to the very end of the age of dinosaurs, they faced serious competition from other reptile species.

The president has made no secret of his distaste for wind and solar in America. Now he's taking his fossil fuel agenda overseas.

The agency's fall recommendations underscore the goals of Health Secretary Robert F. Kennedy Jr. to limit access to the vaccines, which he has long opposed.

In a proof of concept, researchers demonstrated that they could bioengineer a couple of hours of light into a common plant.

A new study reveals some of the crucial molecular steps on the path to bipedalism.

Scientists have found that a single tree can be home to a trillion microbial cells -- an invisible ecosystem that is only beginning to be understood.

After two consecutive scrubs, the Starship vehicle is due for its 10th test flight as Elon Musk's company aims to overcome earlier setbacks.

He shared the Nobel Prize in Physics for his work on gravitational waves, which helped confirm Einstein's general theory of relativity and how the universe began.

The patient had traveled to Central America, where an outbreak of myiasis, an infection by screwworm larvae, has been ravaging livestock.

To blunt the toxic arsenic in the waters where it lives, a deep-sea worm combines it with another chemical to produce a less toxic compound.