Mars Reconnaissance Orbiter News & Features

Water-ice (blue) and dust (red) in the atmosphere of Mars above the cratered Martian surface as viewed from orbit by the THEMIS camera (false-color composite image).

Major Martian Milestones

1 min read

There’s good news from NASA’s Cloudspotting on Mars project! That’s the project that invites you to help identify exotic clouds high in the Martian atmosphere. Congratulations to the Cloudspotting on Mars team and all the volunteers who have helped spot Martian clouds!

Article3 weeks ago

NASA Retires Mineral Mapping Instrument on Mars Orbiter

3 min read

One of six instruments aboard the agency’s Mars Reconnaissance Orbiter, CRISM produced global maps of minerals on the Red Planet’s surface.

Article1 year ago

New Interactive Mosaic Uses NASA Imagery to Show Mars in Vivid Detail

5 min read

Both scientists and the public can navigate a new global image of the Red Planet that was made at Caltech using data from NASA’s Mars Reconnaissance Orbiter.

Article1 year ago

NASA Explores a Winter Wonderland on Mars

4 min read

Cube-shaped snow, icy landscapes, and frost are all part of the Red Planet’s coldest season. When winter comes to Mars, the surface is transformed into a truly otherworldly holiday scene. Snow, ice, and frost accompany the season’s sub-zero temperatures. Some…

Article1 year ago

Help NASA Scientists Find Clouds on Mars

4 min read

By identifying clouds in data collected by NASA’s Mars Reconnaissance Orbiter, the public can increase scientists’ understanding of the Red Planet’s atmosphere. NASA scientists hope to solve a fundamental mystery about Mars’ atmosphere, and you can help. They’ve organized a…

Article2 years ago

NASA Mars Orbiter Releasing One of Its Last Rainbow-Colored Maps

3 min read

The map, to be released in batches over six months, covers the vast majority of the planet, revealing dozens of minerals found on its surface. Scientists are about to get a new look at Mars, thanks to a multicolored 5.6-gigapixel…

Article2 years ago

Update: NASA Extends Exploration for 8 Planetary Science Missions

7 min read

Editor’s Note: On May 26, 2022 NASA’s New Horizons mission’s second extended mission proposal was approved for implementation. In the two-year extended mission, New Horizons will conduct multi-disciplinary observations contributing to important science for NASA’s Planetary Science, Heliophysics and Astrophysics…

Article2 years ago

NASA’s MRO Finds Water Flowed on Mars Longer Than Previously Thought

4 min read

Caltech researchers used the Mars Reconnaissance Orbiter to determine that surface water left salt minerals behind as recently as 2 billion years ago. Mars once rippled with rivers and ponds billions of years ago, providing a potential habitat for microbial…

Article2 years ago

NASA’s Mars Fleet Lies Low With Sun Between Earth and Red Planet

3 min read

The missions will continue collecting data about the Red Planet, though engineers back on Earth will stop sending commands to them until mid-October. NASA will stand down from commanding its Mars missions for the next few weeks while Earth and…

Article3 years ago

NASA Confirms Thousands of Massive, Ancient Volcanic Eruptions on Mars

6 min read

Scientists found evidence that a region of northern Mars called Arabia Terra experienced thousands of “super eruptions,” the biggest volcanic eruptions known, over a 500-million-year period. Some volcanoes can produce eruptions so powerful they release oceans of dust and toxic…

Article3 years ago