The Atacama Desert in Chile offers some of the clearest views of the universe, thanks to its dry climate, high altitude and isolation from light pollution. It's home to major astronomical projects like the Extremely Large Telescope. However, these skies face …

Scientists have discovered that many plants emit faint ultrasonic clicks when distressed.

The most abundant stars are dwarf stars with a tenth of the mass of the Sun. They live for trillions of years (as calculated here), over a…

Ten years ago, Antarctica's sea ice suddenly and dramatically declined. Scientists now blame a "very violent release" of deep, pent-up heat.

Astronomers, using the Atacama Large Millimeter/submillimeter Array (ALMA), have confirmed the existence of a close quasar pair housed in a pair of merging galaxies seen when the universe was less than a billion years old, at a redshift of 5.7. The system, de…

Scientists found the orb in deep water west of Prince of Wales Island during an ongoing research program called Seascape Alaska.

Mars has almost no breathable oxygen. Here’s why that matters, and how NASA’s MOXIE could help future astronauts survive.

Falcon Heavy's 12th-ever liftoff is scheduled for 10:21 a.m. ET on Monday (April 27).

Russia launches a crucial 3-ton cargo mission to the ISS, ensuring astronauts remain supplied and operations continue uninterrupted.