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…

2 months ago

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.

1 year ago

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…

1 year ago

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…

2 years ago

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…

2 years ago

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…

2 years ago

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…

2 years ago

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…

2 years ago

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…

3 years ago

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…

3 years ago