NASA's Jet Propulsion Laboratory News and Features 12 Dec 2017, 20:12 UTC If you could fly aboard NASA's Dawn spacecraft, the surface of dwarf planet Ceres would generally look quite dark, but with notable exceptions. These exceptions are the hundreds of bright areas that stand out in images Dawn has returned. Now, scientists have a better sense of how these reflective areas formed and changed over time -- processes indicative of an active, evolving world.
NASA's Chandra X-ray Observatory 12 Dec 2017, 18:00 UTC
ESA Human Spaceflight and Exploration 12 Dec 2017, 14:10 UTC ESA astronaut Paolo Nespoli will return to Earth on 14 December after his third mission to the International Space Station.
ASI Agenzia Spaziale Italiana 12 Dec 2017, 12:17 UTC Data collected by the Cassini spacecraft, before it was deliberately crashed into Saturn's atmosphere in September 2017, show that the planet's illustrious rings are casting a shadow in ionized particles over the planet. Cassini has transmitted a hoard of valuable data from Saturn since it arrived at the planet in 2004.
NASA's Jet Propulsion Laboratory News and Features 11 Dec 2017, 20:12 UTC Data collected by NASA's Juno spacecraft during its first pass over Jupiter's Great Red Spot in July 2017 indicate that this iconic feature penetrates well below the clouds. Other revelations from the mission include that Jupiter has two previously uncharted radiation zones. The findings were announced Monday at the annual American Geophysical Union meeting in New Orleans.
ESA Top News 11 Dec 2017, 08:11 UTC A young massive star that began life around 25 times more massive than our own Sun is shedding shells of material and fast winds to create this dynamic scene captured by ESA’s XMM-Newton. The image shows the detailed structure of the Crescent Nebula that shed a shell of material as it expanded into a red giant some 200 000 years ago. Fast winds emitted more recently have now collided with that material, causing the gasses in the bubble to heat up and emit X-rays, seen as blue in the image. Other features can also be seen, such as the green hue, generated by oxygen atoms, where the star’s wind is interacting with the surrounding interstellar medium. Density differences in the surrounding material may give rise to the different structures, such as the extended bubble segment to the top right. The star will likely end its life in a violent supernova explosion. The Crescent Nebula sits in the constellation of Cygnus about 5000 light-years away, exactly at a location in the sky that has not been accessible to XMM-Newton until recently. Although it has been well studied by other X-ray telescopes, astronomers working on XMM-Newton, which was launched on 10 December ...
New Horizons 9 Dec 2017, 05:13 UTC NASA's New Horizons spacecraft carried out a short, 2.5-minute engine burn on Saturday, Dec. 9 that refined its course toward 2014 MU69, the ancient Kuiper Belt object it will fly by a little more than a year from now. Setting a record for the farthest spacecraft course correction to date, the engine burn also adjusted the arrival time at MU69 to optimize flyby science.