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18 September 2018
One of the most surprising discoveries of the NASA’s Messenger mission was the presence of unusual, bright, irregular and rimless flat-floored depressions on the surface of Mercury. These depressions, called hollows, are usually found on crater walls, rims, floors and central peaks. Since the hollows appear fresh, they may be actively forming today through a mechanism that could involve the loss of volatile compounds, but understanding how the hollows formed is still a major challenge for scientists.
20 April 2015
by Ryan Anderson The short drive on sol 958 was a success, placing us at the top of a small ridge, facing an outcrop dubbed “Daughter of the Sun”. The plan for sol 959 is to do some ChemCam and Mastcam of targets “Gold” and “Espinoza”, followed by several Mastcam mosaics. The biggest mosaic will be a 26×2 stereo mosaic looking toward Logan Pass. We also have a 7×3 stereo …
14 April 2015
by Ryan Anderson With the last portion of the Telegraph Peak sample delivered to SAM and analyzed by APXS, we are ready to keep driving. In the sol 956 plan, there is a quick science block in the morning, to allow the rover to take a couple of Mastcam pictures of nearby boulders called “Waucoba” and Navcam pictures to complete the 360 degree panorama of the area. After that, we …
30 March 2011
MESSENGER just returned the first image of Mercury ever taken from orbit around the planet!
17 March 2011
In a little over 12 hours, the spacecraft MESSENGER will finally be orbiting the planet Mercury. It’s been a long trip: MESSENGER launched way back in August of 2004 and has spent the intervening time doing flybys of Earth, Venus and Mercury. To date it has gone almost 4.9 billion miles.