HiRISE
There are Important Differences Between the Ice Caps on Mars
In the 17th century, astronomers Giovanni Domenica Cassini and Christian Huygens noted the presence of hazy white caps while studying the…
This Sure Looks Like the Movements of a Glacier Across Ancient Mars
An image taken by the HiRISE camera aboard NASA's MRO shows evidence of past glaciers away from Mars' polar regions.
NASA’s HiRISE Camera Recently Imaged a Martian Dust Devil. But Why Study Them?
NASA recently used its powerful High Resolution Imaging Experiment (HiRISE) camera onboard the Mars Reconnaissance Orbiter to take a breathtaking…
There's a Crater on Mars That Looks Like a Bear
Facial pareidolia is the human tendency or illusion of seeing facial structures in an everyday objects – such as seeing…
Beautiful Dunes on Mars, Sculpted by Swirling Winds
This interesting image from the HiRISE camera on the Mars Reconnaissance Orbiter shows a field of fascinating dunes called barchan…
This Ice Cliff is One of the Few Places With Exposed Water ice in the Mid-Latitudes on Mars. It’s Probably Tens of Millions of Years old
Because of the orbiters and landers that have studied Mars over the years, scientists have learned that water ice is…
The Tharsis Region of Mars is Peppered With These Strange Pit Craters. Now They’ve Been Found Elsewhere
Pit craters are found on solid bodies throughout our Solar System, including Earth, Venus, the Moon, and Mars. These craters…
This Bizarre Terrain on Mars is Caused by Water Ice and Carbon Dioxide
From orbit, this landscape on Mars looks like a lacy honeycomb or a spider web. But the unusual polygon-shaped features…
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…
This is a Dust Avalanche on Mars
For decades, scientists have observed dark landslides called slope streaks on Mars. First seen by the Viking orbiters in the…