Researchers have shown that space travel puts a powerful, dangerous squeeze on the fragile tips of optic nerves.
Using a new type of imaging, doctors were able to peer into the eyes of a young woman and see — on the cellular level — the type of damage that occurs from looking directly at the sun during an eclipse.
A tiny slowdown in Earth's rotation next year could trigger more earthquakes than usual, new research suggests.
Properly winterizing lawn equipment is well worth your time and effort. Here are six steps to take before the winter.
NASA's OCO-2 satellite observed carbon dioxide response to one of strongest El Niños on record.
How does Harvey compare to 2005's Hurricane Katrina, one of the deadliest storms to ever strike the U.S.?