A Moon Falling Apart: Grooves on Phobos Are a Sign of its Eventual Catastrophic Fate

The unusual grooves on Phobos’ surface, such as those on the left side of this image, are now thought to be caused by tidal stress. The large crater Stickney is in the upper portion of the image. Image Credit: NASA/JPL-Caltech/University of Arizona

Phobos is the largest of Mars’ two tiny moons, but 50 […]

Hubble Observes Largest Group of Faintest and Earliest Galaxies Ever Seen

Hubble view of a galaxy cluster containing some of the smallest and youngest galaxies ever observed. Image Credit: NASA/ESA/HST Frontier Fields team (STScI)

Peering ever further back in space and time, the Hubble Space Telescope has glimpsed the largest known group of the faintest and youngest primordial galaxies ever—over 250—some of which are […]

Astronomers Begin Worldwide Observations of 'Unusual' Star as SETI Listens for Alien Signals

Astronomers have begun a follow-up study of the unusual star KIC 8462852 in the hopes of explaining Kepler’s enigmatic observations. To that end, the American Association of Variable Star Observers recently issued a call to the astronomical community worldwide for more detailed observations, while the SETI Institute has began searching for possible radio […]

The Kepler Discovery Controversy: Objects Orbiting New Star Likely Cometary Fragments, Not Aliens

Are the unusual objects around KIC 8462852 a giant swarm of comets or something else? Image Credit: NASA/JPL-Caltech/T. Pyle (SSC)

There has been a lot of discussion during the past several days regarding a discovery by the Kepler Space Telescope, which, according to some, might be the first evidence for advanced extraterrestrial intelligence, […]

Unusual Fast-Moving 'Ripples' Discovered in Planetary Debris Disk Surrounding Nearby Star

Hubble and VLT images of the “ripples” within the debris disk surrounding the young star AU Microscopii. Image Credit: ESO/NASA/ESA

Planetary debris disks, or protoplanetary disks, are some of the most interesting phenomena in astronomy – these giant clouds of dust and gas surrounding young stars are the birthplaces of new planets. Now, […]

Gemini Planet Imager Finds Its First Exoplanet, a Methane-Rich 'Young Jupiter'

Discovery near-infrared image of the exoplanet 51 Eridani b taken by the Gemini Planet Imager on Dec. 21, 2014. The relative size of Saturn’s orbit is also shown for comparison. Image Credit: Gemini Observatory/J. Rameau (UdeM)/C. Marois (NRC Herzberg)

The Gemini Planet Imager, a new telescopic instrument designed to find, image, and study […]

NASA Awards Grants to Ozark IC to Create Circuits for Proposed Venus Rover

Artist’s conception of the Venus Landsailing Rover. It would use advanced circuits which could survive longer than previous landers in the extreme surface conditions. A “sail” on top would help to move the rover on the surface using wind, a technique known as landsailing. Image Credit: NASA GRC

In what may be a […]

Astronomers Find First Evidence of Possible Volcanic Activity On a Super-Earth Exoplanet

Artist’s conception of super-Earth exoplanet 55 Cancri e, before and after volcanic activity on its day side. The surface may be partially molten. Image Credit: NASA/JPL-Caltech/R. Hurt

Discovering new exoplanets has become rather routine in the last few years, but determining just what conditions exist on any of them is naturally more difficult, […]

NASA Space Telescope Sees Possible X-Ray 'Screams' From Zombie Stars

Illustration showing the central region of our galaxy as seen by NuSTAR (magenta circle). The smaller circle shows where the image was taken. Image Credit: NASA/JPL-Caltech

It sounds like something from a bad sci-fi movie, but a NASA space telescope has detected what might be the X-ray “screams” from dead (zombie) stars. The […]

New NASA NExSS Coalition to Lead Search for Life on Distant Exoplanets

NASA’s NExSS collaboration will bring together scientists from diverse backgrounds to help search for evidence of life in other Solar Systems. Image Credit: NASA

The search for, and discovery of, exoplanets orbiting other stars has become a full-fledged endeavour in recent years, with thousands found so far and more being discovered practically every […]