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

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 ...

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

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

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

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 ...

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

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