Mars Reconnaissance Orbiter

InSight Heard Four Meteoroids Crash Into Mars

For the first time, a spacecraft has detected acoustic and seismic waves from impacts on Mars. NASA’s InSight lander made…

2 weeks 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…

4 weeks 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…

1 month 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 months ago

A New Map of Mars, Made From 51,000 Orbital Images

When NASA sent the Mars Reconnaissance Orbiter (MRO) to the red planet in 2006, the spacecraft took an instrument with…

3 months 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…

4 months 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…

5 months ago

Eight Missions are Getting Extensions, Most Exciting: OSIRIS-REx is Going to Asteroid Apophis

NASA has granted mission extensions to eight different planetary missions, citing the continued excellent operations of the spacecraft, but more…

5 months ago

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…

6 months ago

Perseverance Finally Spots its Own Parachute on the Surface of Mars

More than 13 months after the Perseverance rover landed on Mars (on February 18, 2021), the rover’s cameras have finally…

6 months ago