The latest disagreement over the universe’s expansion rate suggests researchers may be on the threshold of revolutionary discoveries
Detonating over the Bering Sea, the blast was as powerful as a nuclear bomb
NASA mission finds asteroid Bennu littered with big boulders and spraying out particles
New research flags jets of water vapor—rather than alien technology—as the source of the mysterious object’s anomalous motions
When jets of charged particles from the sun hit our magnetosphere, some of the ensuing ripples travel toward the northern and southern poles and get reflected back. The resulting interference allows standing waves to form, like on a drumhead...
For the second year in a row, the White House is seeking to cancel one of the space agency’s top-priority astrophysics projects, the Wide-Field Infrared Survey Telescope
CERN-like organization will oversee the construction and operation of the powerful Square Kilometer Array
A new model suggests smashing killer space rocks with insufficient force could let gravity pull the pieces back together. Christopher Intagliata reports.
Get lost in space with this thrilling collection of images from the revered agency
Splashdown occurred at 8:45 am Eastern time about 230 miles off the Florida coast
Pinning down the object’s orbit could reveal it to be a crucial clue in the search for undiscovered planets—or just another frozen space rock
Small stones have impeded progress on landmark efforts to study the Red Planet’s subsurface activity
A tug-of-war between the forces behind a planet’s orbit and its spin can throw entire worlds off-kilter
A few brief reports about international science and technology from Greenland to Palau, including one on the discovery of a trove of mummified cats in Egypt.
The insides of neutron stars—the densest form of matter in the universe—have long been a mystery, but it is one that scientists are starting to crack
An uncrewed test flight to the International Space Station will be a crucial milestone for the company’s grand vision of private spaceflight
Humans traveling to Mars will be required to operate with a degree of autonomy human astronauts have never had, due to communication delays. Christopher Intagliata reports.
The mission to Asteroid Ryugu could return samples of the space rock to Earth in 2020
An Israeli firm is sending a privately built craft to the moon—and leading a fresh era of exploration