Astronomers in Australia have picked up an “alien” radio signal from space for the first time as it occurred.
A mountain-size asteroid will zoom past Earth Monday.
SEATTLE — Scientists are finding more evidence of a galactic "skeleton" lurking inside the appendages of the Milky Way, and studying these massive "bones" could help...
Stunning cosmic clouds and stars are captured in this image of Melotte 15 showing the newborn star cluster in the core of the so-called Heart nebula.
Air & Space
"Planet X" might actually exist — and so might "Planet Y." At least two planets larger than Earth likely lurk in the dark depths of space far beyond Pluto,
Air & Space
NASA’s Dawn spacecraft is approaching the dwarf planet Ceres and new images released Monday show a closer view of the planet’s surface.
"Biological soil crusts" don't look like much.
A team of scientists has published the results of an investigative survey into the Sutter's Mill meteorite that landed in California in 2012.
From eyewitness accounts of “trails of light” streaking across the sky to sightings of flying saucers, now amateur Mulder and Scullys alike can see if the truth really is out...