ASI Agenzia Spaziale Italiana 10 Nov 2017, 12:15 UTC The color-enhanced view captures one of the white ovals in the “String of Pearls,” one of eight massive rotating storms at 40 degrees south latitude on the gas giant planet.
HubbleSite NewsCenter -- Latest News Releases 9 Nov 2017, 18:00 UTC Voices reverberating off mountains and the sound of footsteps bouncing off walls are examples of an echo. Echoes happen when sound waves ricochet off surfaces and return to the listener. Space has its own version of an echo. It’s not made with sound but with light, and occurs when light bounces off dust clouds. The Hubble telescope has just captured one of these cosmic echoes, called a “light echo,” in the nearby starburst galaxy M82, located 11.4 million light-years away. A movie assembled from more than two years’ worth of Hubble images reveals an expanding shell of light from a supernova explosion sweeping through interstellar space three years after the stellar blast was discovered. The “echoing” light looks like a ripple expanding on a pond. The supernova, called SN 2014J, was discovered on Jan. 21, 2014.
Carnegie Science 8 Nov 2017, 18:03 UTC
NASA's Jet Propulsion Laboratory News and Features 7 Nov 2017, 20:11 UTC A new NASA study adds evidence that a geothermal heat source called a mantle plume lies deep below Antarctica's Marie Byrd Land, explaining some of the melting that creates lakes and rivers under the ice sheet. Although the heat source isn't a new or increasing threat to the West Antarctic ice sheet, it may help explain why the ice sheet collapsed rapidly in an earlier era of rapid climate change, and why it is so unstable today.
National Radio Astronomy Observatory (NRAO) 7 Nov 2017, 16:49 UTC A giant collision of several galaxy clusters, each containing hundreds of galaxies, has produced this spectacular panorama of shocks and energy. The collisions generated shock waves that set off a celestial fireworks display of bright radio emission, seen as red and orange. In the center of the image, the purple indicates X-rays caused by extreme heating.
ESA Top News 7 Nov 2017, 13:42 UTC Life on Earth has a myriad of problems, but gravity isn’t one of them – staying grounded means organisms can soak up the light and heat that enables growth. It’s no wonder that the free-floating environment of space stresses organisms, which survive only if they can adapt. Like humans, plants have proven their robustness in space. Now, thanks to the International Space Station, we know more on how they cope with weightlessness.