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Image credit: NASA/JPL-Caltech/Univ. of Arizona

Bang and Whoosh!

Bang and Whoosh! This HiRISE image from NASA’s Mars Reconnaissance Orbiter (MRO) captures a new, dated (within about a decade) impact crater that triggered a slope streak. When the meteoroid hit the surface and exploded to make the crater, it also destabilized the slope and initiated this avalanche. The crater…

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Image from NASA’s Mars Reconnaissance Orbiter shows a fierce dust storm is kicking up on Mars, with rovers on the surface indicated as icons. Credits: NASA/JPL-Caltech/MSSS

NASA Encounters the Perfect Storm for Science

NASA Encounters the Perfect Storm for Science One of the thickest dust storms ever observed on Mars has been spreading for the past week and a half. The storm has caused NASA’s Opportunity rover to suspend science operations, but also offers a window for four other spacecraft to learn from…

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This global map of Mars shows a growing dust storm as of June 6, 2018. The map was produced by the Mars Color Imager (MARCI) camera on NASA's Mars Reconnaissance Orbiter spacecraft. The blue dot indicates the approximate location of Opportunity. Credits: NASA/JPL-Caltech/MSSS

Opportunity Hunkers Down During Dust Storm

Opportunity Hunkers Down During Dust Storm NASA Mars Exploration Rover Status Report Updated at 4:30 p.m. PDT on June 10, 2018 NASA engineers received a transmission from Opportunity on Sunday morning — a positive sign despite the worsening dust storm. Data from the transmission let engineers know the rover still…

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Credit: NASA/JPL-Caltech/Univ. of Arizona

Patches of Snow on the Red Planet

Patches of Snow on the Red Planet In early Martian summer, at the time NASA’s Mars Reconnaissance Orbiter acquired this image, the dunes are almost free of their seasonal ice cover. Only pockets of ice protected in the shade most of the day remain. The North Pole of Mars is…

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'Baby Spider': Growth of a Martian Trough Network This sequence of three HiRISE images from NASA's Mars Reconnaissance Orbiter shows the growth of a branching network of troughs carved by thawing carbon dioxide over the span of three Martian years. This process may also form larger radially patterned channel features known as Martian "spiders." Credit: NASA/JPL-Caltech/Univ. of Arizona

Small Troughs Growing on Mars May Become ‘Spiders’

Small Troughs Growing on Mars May Become ‘Spiders’ Erosion-carved troughs that grow and branch during multiple Martian years may be infant versions of larger features known as Martian”spiders,” which are radially patterned channels found only in the south polar region of Mars.Researchers using NASA’s Mars Reconnaissance Orbiter (MRO) report the…

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Landscape of Former Lakes and Streams on Northern Mars Valleys much younger than well-known ancient valley networks on Mars are evident near the informally named "Heart Lake" on Mars. This map presents color-coded topographical information overlaid onto a photo mosaic. Lower elevations are indicated with white and purple; higher elevations, yellow. Image Credit: NASA/JPL-Caltech/ASU

Some Ancient Mars Lakes Came Long After Others

Some Ancient Mars Lakes Came Long After Others Lakes and snowmelt-fed streams on Mars formed much later than previously thought possible, according to new findings using data primarily from NASA’s Mars Reconnaissance Orbiter. The recently discovered lakes and streams appeared roughly a billion years after a well-documented, earlier era of…

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