NASA's black-hole-hunter spacecraft, the Nuclear Spectroscopic Telescope Array, or NuSTAR, has "bagged" its first 10 supermassive black holes.
A monster storm that erupted on Saturn in late 2010 – as large as any storm ever observed on the ringed planet -- has already impressed researchers
Thanks to new technology developed in part at the UA, astronomers can now view objects in the sky at unprecedented sharpness in visible light.
C. Gordon Fullerton, who compiled a distinguished career as a NASA astronaut, research pilot and Air Force test pilot spanning almost 50 years, died Aug. 21.
Ancient Egyptian beads found in a 5,000-year-old tomb were made from iron meteorites that fell to Earth from space
NASA's new short film "Water Falls" invites the public along for the ride as scientists follow water around the globe — on a globe.
NASA's Juno spacecraft is halfway to Jupiter.
On Aug.11 and 12, 2013, the annual Perseid meteor shower will peak
Don’t be fooled by the title; the mysterious, almost mystical bright light emerging from these thick, ominous clouds is actually a telltale sign of star formation.
What if we got to land on Europa's surface and conduct something along the lines of a more in-depth interview?
Using infrared data from the Subaru Telescope in Hawaii, an international team of astronomers has imaged a giant planet around the bright star GJ 504.
The true identity of centaurs, the small celestial bodies orbiting the sun between Jupiter and Neptune, is one of the enduring mysteries of astrophysics.
What can survive blazing temperatures of almost 6,000 degrees Fahrenheit without melting? Answer: 3-D printed parts
About 10,000 years ago, Comet ISON left our solar system's distant shell, a region known as the Oort cloud, and began streaking toward the sun.
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