Help Shape the Future of Space Exploration

Join The Planetary Society Now  arrow.png

Join our eNewsletter for updates & action alerts

    Please leave this field empty

Headshot of Emily Lakdawalla

Pretty (strange) picture from HiRISE: Dust flow crater?

Posted by Emily Lakdawalla

08-04-2010 11:38 CDT

Topics: pretty pictures, Mars, Mars Reconnaissance Orbiter

Yesterday was the Mars Reconnaissance Orbiter HiRISE team's latest flood of archived images, 1,025 of them. You can browse them all here; they are provided with titles but most have little other descriptive information. I figured most people would browse the pages sequentially and not get through all 65 pages of thumbnails. Knowing I wouldn't scan them all either, I skipped forward to page 42 (what other number would I pick?) and started browsing from there. I saw gorgeous sand dunes, some pretty incredible recent gullies eroding crater walls and depositing fans onto crater floors, and lots of other cool stuff; but the image below won the prize for weirdness.

Strange flow-floored crater in Terra Sabaea


Strange flow-floored crater in Terra Sabaea
The image is about 5 kilometers wide by 21 kilometers long. It is centered at 6.6° south, 20.1° east.

It's an impact crater, of course; the shape of the walls of the crater isn't anything unusual. But what the heck is going on in the crater floor? Here's a closeup:

Center of an odd crater in Terra Sabaea


Center of an odd crater in Terra Sabaea
This Mars Reconnaissance Orbiter HiRISE image is about 800 meters square and covers an area in the center of an impact crater in Terra Sabaea, Mars.

This isn't like the center of any other crater I've ever seen, with its wrinkly fractures and flow features. At least they look flow-ish. Flows of what? Lava? Dust? I haven't the foggiest idea. But the pictures are cool, aren't they? Go explore the archive for yourselves to find more cool stuff.

See other posts from April 2010


Or read more blog entries about: pretty pictures, Mars, Mars Reconnaissance Orbiter


Leave a Comment:

You must be logged in to submit a comment. Log in now.
Facebook Twitter Email RSS AddThis

Blog Search


Advocate for Space!

Fifteen years ago, Society members and passionate space advocates like you helped save the Pluto mission. Now we can do the same for missions to Europa and Mars.

Join over 27,600 people who have completed their petition and consider a donation to support advocacy efforts.

Sign Our Petition

Featured Images

LightSail-B on the bench
Blue Origin New Shepard after first landing
New Shepard test flight and booster landing
Suni Williams and Doug Hurley in Crew Dragon
More Images

Featured Video

MISSIONS: Dawn In The Asteroid Belt With Marc Rayman

Watch Now

Space in Images

Pretty pictures and
awe-inspiring science.

See More

Selfies to Space!

Take flight with a selfie on LightSail™ in 2016!

Send a Selfie Now

Connect With Us

Facebook! Twitter! Google+ and more…
Continue the conversation with our online community!