Facial pareidolia is the human tendency or illusion of seeing facial structures in an everyday objects – such as seeing the “man in the Moon,” or the face of Jesus on a piece of toast. But here’s a newly found crater on Mars that might be a case of ‘bear-adoilia.’Continue reading “There's a Crater on Mars That Looks Like a Bear”
This Crater on Mars is Just a Couple of Years Old
Changes are always taking place on Mars, from factors like seasonal variations and wind. But there’s one other aspect that changes the surface of Mar quite often: impacts.
Here’s a new impact crater that was seen by the Mars Reconnaissance Orbiter. Exactly when the crater formed is not known, but this image was taken on July 24, 2020 and in a previous image of this site taken in 2018, the crater is not there.Continue reading “This Crater on Mars is Just a Couple of Years Old”
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Here’s Something Rare: a Martian Crater That isn’t a Circle. What Happened?
Most impact craters are usually circular and fairly symmetric, but not all. This odd-shaped crater on Mars is obviously an impact crater, but it has a unique oblong shape. What happened?Continue reading “Here’s Something Rare: a Martian Crater That isn’t a Circle. What Happened?”
It’s Springtime on Mars, and the Dunes are Defrosting
Nothing says springtime on Mars like defrosting dunes.Continue reading “It’s Springtime on Mars, and the Dunes are Defrosting”
Rings Inside a Martian Crater Reveal its Ancient History
Is this a closeup look at a tree stump, or an orbital view of an impact crater? At first glance, it might be hard to tell. But this image of a crater on Mars provides planetary scientists almost the same kind of climate history data about the Red Planet as tree rings provide to climate scientists here on Earth.
This picture was taken by the Colour and Stereo Surface Imaging (CaSSIS) camera onboard the ESA/Roscosmos ExoMars Trace Gas Orbiter (TGO), which arrived at Mars in 2016 and began its full science mission in 2018.Continue reading “Rings Inside a Martian Crater Reveal its Ancient History”
It’s Been Constantly Raining Meteors on Mars for 600 Million Years. Earth too.
New research shows that Mars has faced a constant rain of meteors during the last 600 million years. This finding contradicts previous research showing that the impact rate has varied, with prominent activity spikes. Why would anyone care how often meteors rained down on Mars, a planet that’s been dead for billions of years?
Because whatever Mars was subjected to, Earth was also likely subjected to.
Who wouldn’t want to know our planet’s history?Continue reading “It’s Been Constantly Raining Meteors on Mars for 600 Million Years. Earth too.”
‘Glowing’ Sand Dune Erosion on the Side of a Martian Crater
While Mars is known as the Red Planet, a variety of colors can be found on the planet’s surface. Just like on Earth, the array of colors we can see in images from Mars comes from the diverse minerals on or just under the surface.
In the case of this picture, subsurface minerals show up in gullies that have eroded down the side of a a giant sand dune.Continue reading “‘Glowing’ Sand Dune Erosion on the Side of a Martian Crater”
A Lake in a Martian Crater was Once Filled by Glacial Runoff
All across the Martian surface, there are preserved features that tell the story of what Mars once looked like. These include channels that were carved by flowing water, delta fans where water deposited sediment over time, and lakebeds where clay and hydrated minerals are found. In addition to telling us more about Mars’ past, the study of these features can tell us about how Mars made the transition to what it is today.
According to new research led by Brown Ph.D. student Ben Boatwright, an unnamed Martian crater in Mars southern highlands showed features that indicate the presence of water, but there is no indication of how it got there. Along with Brown professor Jim Head (his advisor), they concluded that the crater’s features are likely the result of runoff from a Martian glacier that once occupied the area.Continue reading “A Lake in a Martian Crater was Once Filled by Glacial Runoff”
The “Happy Face Crater” on Mars Has Been Changing Right Before Our Eyes
Who has an even bigger grin than ten years ago? This goofy-looking crater on Mars.Continue reading “The “Happy Face Crater” on Mars Has Been Changing Right Before Our Eyes”
Weekly Space Hangout: December 2, 2020 – Dr. Ingrid Daubar, Planetary Scientist, Brown University
This week we are joined by Dr. Ingrid Daubar, Planetary Scientist from Brown University studying impact cratering within our solar system. Dr. Daubar is part of a team that has been using a new AI classification tool to identify geologic features on planetary surfaces, such as Mars.Continue reading “Weekly Space Hangout: December 2, 2020 – Dr. Ingrid Daubar, Planetary Scientist, Brown University”
Podcast (wshaudio): Download (Duration: 57:11 — 26.2MB)