This image of Aram Chaos was taken on April 1, 2018 by the High Resolution Imaging Science Experiment (HiRISE).Within this 280 km diameter crater are large amounts of iron oxide, hematite, and silicates that form only in the presence of water, indicating that Aram Chaos was formerly a lake.According to scientists, 2.5 billion years ago, some “catastrophic” water spills from underground have carved huge river channels in a relatively short time (weeks or perhaps months). Currently, dark dunes, probably of basaltic origin, fill most of the lower areas and channels carved by the water along with blocks of lighter material, obscuring most of the original crater floor. This post has been automatically translated. See the original post here.

According to research just published in the Journal of Geophysical Research, the remains of hundreds of ancient sand dunes partially cemented by water action have been discovered in the Hellas Basin and Noctis Labyrinthus.The floods that invaded these ancient sand dunes occurred about 2 billion years ago, contributing to the partial cementing of the base of the dunes.These remnants of ancient dunes provide us with important information about the prevailing wind direction at that time and may also preserve the remains of ancient life forms that were trapped during the cementing process of the dunes themselves…. This post has been automatically translated. See the original post here.

Anthony Wesley has long been known as a great astrophotographer, with a 55.3 cm diameter telescope to boot!Again, the tops of large volcanoes, the south polar cap, the cloudy “collar” surrounding the north pole and another formation at the edge of the south polar cap are barely visible.Click on the image itself for more technical information….. This post has been automatically translated. See the original post here.

A beautiful article that describes the entire onset of the sandstorm that still envelops the entire surface of the planet Mars. Here you will find data and information difficult to find elsewhere and that also open several questions about the dynamics of such storms.For the moment Opportunity does not respond, but this does not surprise the technicians even if it obviously worries them; more time passes and more diminish the chances of restoring contact, although for the moment there is still a good margin not to despair…. This post has been automatically translated. See the original post here.

Stop this crap!!! This post has been automatically translated. See the original post here.

In this animation, Damian Peach shows us his photo of Mars “fading” with a simulated image of what it would have looked like in the absence of the storm.Notice how only the tops of the large volcanoes make it through the dust-laden atmosphere; also note the south polar cap (below) as well as the blue-white clouds that are instead condensations of water ice crystals! This post has been automatically translated. See the original post here.

Mars is still in the midst of the storm and could last for months more! This post has been automatically translated. See the original post here.

Pages like this and even Wikipedia could close down if the European Parliament approves the new copyright law on July 5th!It will even become illegal to share a link to a news story!Please sign and share while it is still possible!!! This post has been automatically translated. See the original post here.

To the side of the photo is a simulation of what it should have looked like.As you can see from the comparison, the global sandstorm makes it unrecognizable!Also note the large blue-white formation in the lower left edge of the planet just above the south polar cap; it looks like it could be a water ice cloud! This post has been automatically translated. See the original post here.