Tag Archives: impact melt

Opportunity report, Sol 5042, by A.J.S. Rayl, The Planetary Society

April 11, 2018: Opportunity Presses On in Perseverance, Pace Picks Up: In the west rim of Endeavour Crater, Opportunity continued her exploration of Perseverance Valley in March – humankind’s first study of a carved channel in an ancient crater on … Continue reading

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Impact-heated rock led to relatively recent water-carved valleys on Mars

New research shows that water from melted snow and ice likely carved valley networks around Lyot crater on Mars. Present-day Mars is a frozen desert, colder and more arid than Antarctica, and scientists are fairly sure it’s been that way … Continue reading

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HiRISE: Bedrock exhumed from the deep

Roadside bedrock outcrops are all too familiar for many who have taken a long road trip through mountainous areas on Earth. Martian craters provide what tectonic mountain building and man’s TNT cannot: crater-exposed bedrock outcrops. Although crater and valley walls … Continue reading

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HiRISE: Preserved ejecta and impact melt

This image of a well-preserved unnamed elliptical crater in Terra Sabaea, is illustrative of the complexity of ejecta deposits forming as a by-product of the impact process that shapes much of the surface of Mars. Here we see a portion … Continue reading

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HiRISE: Landslide, impact melt or lava?

This observation shows the full-width of a HiRISE image and its enhanced color strip, which only covers approximately 20 percent of the picture. The image is approximately 6 by 6 kilometers and is located east of Noctis Labyrinthus, in a … Continue reading

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Steam jets made pits in crater floors

At first glance, the floors of many large impact craters on Mars have areas that appear smooth and flat. But a closer look at some of these flat floors shows a much more rugged landscape, where one small cuplike pit … Continue reading

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Mars Rover Opportunity explores Cape York

Mars Exploration Rover Opportunity reached the south end of Cape York, a segment of the rim of Endeavour Crater about 700 meters (2,300 feet) long, on August 9, 2011. Scientists and engineers examined several targets there before driving the rover … Continue reading

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