There's a strange sphere of mass at the outer reaches of solar space.
The galaxy is a big place, after all.
A new study suggests hibernation is an ancient adaptation to harsh winters.
Hair may record the information swallowed by the gravitational monsters.
Some people with HIV have a seemingly miraculous ability to control the disease without life-long antiviral medications or risky bone marrow transplants, and now, a new...
"There is no chance" the sloth survived.
Cells intuitively avoided dead-ends when released into microscopic mazes. Here's how.
The solidification of the inner core may have strengthened Earth's magnetic field.
The mummy had an undigested piece of woolly rhino in its stomach.
A spectacular fireworks show will light up an otherwise pitch black universe.