Rubbery blue sea creatures are washing up on California beaches by the thousands.

Huge magma eruptions may have torn South America and Africa apart during the breakup of supercontinent Pangaea ...

The female sex hormone estrogen, along with progesterone, appears to underlie a fundamental difference in how males and ...

The sounding rockets released vapor tracers and pressure sensors at different altitudes across central and northern Alaska ...

Nitisinone, a drug that is already used to treat two genetic diseases, could be repurposed to control the spread of malaria, ...

The discovery suggests the soldiers were killed while fighting with Germanic warriors along the northern frontier of the ...

A man in his early 20s received a transplant of his own sperm-producing stem cells, which had been frozen since his childhood.

SpaceX's Starship has been awarded a NASA contract that will allow it to be considered for future missions. However, recent explosive tests have shown the supersized spacecraft is still far from ...

A roughly 100-year-old western Santa Cruz Galápagos tortoise has become a mom for the first time after reproducing with a ...

The colorful swirls and stripes that characterize China's Rainbow Mountains would have remained hidden without the epic ...

Of the 4,000 snake species in the world, only about 600 are venomous, though not all of those pose a threat to humans. That ...

"Twins! She has another baby," Judith Pardo-Pérez, a paleontologist at the University of Magallanes in Chile who first ...