NASA

Images of Pluto's surface (Image NASA/JHUAPL/SwRI)

NASA released images of the dwarf planet Pluto and its main moon Charon showing most of their surface. They’re formed by compositions of various photographs taken by two cameras of the New Horizons space probe: the Long Range Reconnaissance Imager (LORRI) and the Ralph/Multispectral Visible Imaging Camera. The photographs were taken between July 7 and 13, during the approach that led to the extraordinary July 14, 2015 flyby.

Garden City seen by the Mars Rover Curiosity (Image NASA/JPL-Caltech/MSSS)

At the 47th annual meeting of the American Astronomical Society’s Division for Planetary Sciences in National Harbor, Maryland, scientists of NASA’s Mars Rover Curiosity mission presented the results of new analyzes of the Martian site called Garden City. It’s an area visited in March 2015 that turned out to be very interesting from the geological point of view because of its chemical diversity and for its mineral veins, which protrude from the rocks they formed on.

The biggest update made so far to the software that runs Curiosity’s Chemistry and Camera (ChemCam) instrument considerably enhanceed it. In fact, it allowed an improvement in the interpretation of the collected data making it more sensitive to a wider range of possible compositions of the Martian rocks.

Pictures of Phobos showing the grooves on its surface (Photo NASA/JPL-Caltech/University of Arizona)

At the 47th Annual Meeting of the American Astronomical Society’s Division for Planetary Sciences in National Harbor, Maryland, A research was presented about Phobos, a moon of Mars. Terry Hurford of NASA’s Goddard Space Flight Center led a team of scientists who analyzed the grooves on Phobos surface. The conclusion is that these are the first signs of structural failure that will lead to the destruction of this moon.

3-D topographic mapsWright Mons and Piccard Mons, the possible cryovolcanoes. The color depicts changes in elevation, blue indicating lower terrain and brown showing higher elevation. Green terrains are at intermediate heights (Image NASA/JHUAPL/SwRI)

NASA’s New Horizons mission team is presenting the latest findings on the dwarf planet Pluto at the 47th Annual Meeting of the American Astronomical Society’s Division for Planetary Sciences in National Harbor, Maryland. The data collected by the spacecraft during its July 14, 2015 flyby made it possible to identify possible cryovolcanoes. Data on small moons of Pluto are limited but suggest more and more that at least Cerberus and Hydra are the result of the merger of two or more asteroids.

Artistic representazion of a solar storm stripping gas from Mars atmosphere (Image NASA/GSFC)

Two magazines host a number of articles describing the results of a year of the mission of NASA’s MAVEN space probe, “Science” and “Geophysical Research Letters”. The conclusions about why Mars lost most of its atmosphere were also explained in a NASA press conference held yesterday. Simply put, it was solar wind, which could take away the atmosphere thanks to the absence of a protective magnetic field transforming a planet that was originally similar to Earth in the desolate red planet we know today.