In line with NASA's recently issued "Asteroid Grand Challenge," the UA is at the forefront of discovering and tracking s…

All stars begin their lives in groups. Most stars, including our Sun, are born in small, benign groups that quickly fall…

A study led by the University of Alicante, in which the National Research Council has participated, has detected what ma…

An international team of astronomers has found that a nearby star previously thought to host two or three planets is in…

From the “Backyard Supernova,” the Berkeley Lab-led Nearby Supernova Factory has built a benchmark atlas for normal Type Ia’s

Type Ia supernovae are indispensable milestones for measuring the expansion of the universe. With definitive measures of…

New observations of a nearby active galaxy called NGC 3783 have given a team of astronomers –– including a UC Santa Barb…

On June 7, 2011, our Sun erupted, blasting tons of hot plasma into space. Some of that plasma splashed back down onto th…

UCLA space scientists have determined what caused the mysterious ring to appear in the Van Allen radiation belts in Sept…

Astrophysicists have found that contrary to decades of orthodoxy, stars with a high sodium content die before reaching t…

Segue 2 has a mere 1,000 stars bound by dark matter but could answer a major riddle

The least massive galaxy in the known universe has been measured by UC Irvine scientists, clocking in at just 1,000 or s…

Chunks of frozen carbon dioxide have been identified as the most likely mechanism carving linear gullies into sand dunes on Mars, according to a new study combining images from the UA-operated HiRISE camera and experiments conducted on dunes here on Earth.

Chunks of frozen carbon dioxide have been identified as the most likely mechanism carving linear gullies into sand dunes…

If you had a time machine that could take you anywhere in the past, what time would you choose? Most people would probab…

Most skygazers recognize the Orion Nebula, one of the closest stellar nurseries to Earth. Although it makes for great vi…

University of Leicester scientist Dr John Bridges contributed to a new report showing how rocks examined by NASA's Mars rover Curiosity reveal details of an ancient Martian stream

University of Leicester scientist Dr John Bridges contributed to a new report showing how rocks examined by NASA's Mars…

Simulations based on GRAIL data show how gravitational anomalies developed early in lunar history.

Ever since the first satellites were sent to the moon to scout landing sites for Apollo astronauts, scientists have noti…

University of Leicester scientists involved in international discovery of neutron star “anti-glitch” using NASA’s Swift satellite

Using observations by NASA's Swift satellite, an international team of astronomers has identified an abrupt slowdown in…

The Ring Nebula's distinctive shape makes it a popular illustration for astronomy books. But new observations by NASA's

This dramatic new image of cosmic clouds in the constellation of Orion reveals what seems to be a fiery ribbon in the sk…

When a massive star runs out of fuel, its core collapses to form a neutron star, an ultradense object about 10 to 15 mil…

Three of Xenics’ new Xlin-1.7-3000 SWIR InGaAs detectors are aboard the ESA satellite Proba-V to map vegetation patterns…