Jump to content
  • Sign Up
×
×
  • Create New...

Recommended Posts

  • Diamond Member

3 min read

Preparations for Next Moonwalk Simulations Underway (and Underwater)

This is the hidden content, please
NASA’s Curiosity rover discovered an expanse of terrain covered in surface features called polygons. Scientists have never seen so many of these features in one place and are unsure how they formed.
NASA/JPL-Caltech/MSSS

As NASA’s Curiosity rover recently began climbing up a Martian valley nicknamed “Valle Grande,” it sent back images that were a familiar sight to mission scientists: honeycomb-like textures called polygonal fractures, each one about 1.5 to 3 inches (4 to 8 centimeters) across. The mission has spotted small patches of these geometric shapes several times before, but nothing at the scale discovered in Valle Grande.

In a 360-degree panorama that the rover captured on June 19 and 20, the 4,930th and 4,931st Martian days, or sols, of the mission, the polygonal shapes spread in all directions for as far as the rover can see. They even wrap around the sides of a nearby butte nicknamed “Miraflores,” which stands 20 feet (6 meters) tall and is topped with a thick cap of sand.

“We’ve seen a lot of fascinating landscapes through Curiosity’s eyes, but this sea of polygons took our breath away,” said the mission’s project scientist, Ashwin Vasavada of NASA’s Jet Propulsion Laboratory in Southern California. “We measured their shapes and chemistry carefully and are hopeful there are clues in the data as to how these features formed.”

This is the hidden content, please
A close-up of the polygon fractures discovered by NASA’s Curiosity Mars rover highlights their honeycomb-like textures
NASA/JPL-Caltech/MSSS

Some of the polygons that the mission has spotted in the past clearly formed as

This is the hidden content, please
, though a variety of processes can contribute to their honeycomb textures, including cycles of warm and cold temperatures or compression that squeezed water out of the sediment when the surface was buried.

These newly discovered polygons are among the many surprises Curiosity has trundled across since landing on Mars 14 years ago, on Aug. 5, 2012. Besides

This is the hidden content, please
,
This is the hidden content, please
, and other
This is the hidden content, please
, the rover has made major discoveries about the ancient Martian environment — most importantly, that it had the water, chemistry, and nutrients to support microbial life.

Billions of years ago, lakes and streams dappled the lower foothills of Mount Sharp, a 3-mile-tall (5-kilometer-tall) mountain that Curiosity has been ascending since 2014. The rover has previously uncovered chemistry left over from Mars’ watery history, including carbon-based molecules believed to be

This is the hidden content, please
, two nucleic acids that carry genetic information. Scientists have no way of knowing whether these organic molecules were created by biologic or geologic processes — either path is possible — but their discovery reconfirmed that ancient Mars had the right chemistry to support life.

This is the hidden content, please
NASA’s Curiosity Mars rover captured this sand-capped butte, nicknamed “Miraflores,” estimated to be about 20 feet (6 meters) tall, on June 11, 2026. The surrounding area includes an expanse of terrain covered in surface features called polygons.
NASA/JPL-Caltech/MSSS

Managed by Caltech in Pasadena, JPL built Curiosity and leads the mission on behalf of NASA’s Science Mission Directorate in Washington as part of the agency’s Mars Exploration Program portfolio.

To learn more about Curiosity, visit:

This is the hidden content, please

News Media Contacts

Andrew Good
Jet Propulsion Laboratory, Pasadena, Calif.
818-393-2433
*****@*****.tld

 

Karen Fox / Alana Johnson
NASA Headquarters, Washington
240-285-5155 / 202-672-4780
*****@*****.tld / alana.r*****@*****.tld

2026-051

Share

Details

Last Updated
Jul 29, 2026

Related Terms

Explore More

This is the hidden content, please
This is the hidden content, please

This is the hidden content, please

This is the hidden content, please

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Vote for the server

    To vote for this server you must login.

    Jim Carrey Flirting GIF

  • Recently Browsing   0 members

    • No registered users viewing this page.

Important Information

Privacy Notice: We utilize cookies to optimize your browsing experience and analyze website traffic. By consenting, you acknowledge and agree to our Cookie Policy, ensuring your privacy preferences are respected.