Astrogeology Science Center

New Press Release: Massive Ice Sheets Identified on Mars!

10 January 2018

USGS Scientist Colin Dundas’ research is mentioned in yet another national USGS press release. Three months ago he startled the scientific world with evidence that seasonal dark streaks on warm Martian slopes, called recurring slope lineae (RSL), are something other than salty water. Now Dr.… Read More

Sizzling New Evidence on Martian Streaks

20 December 2017

In this exciting press release, USGS scientist, Colin Dundas, provides evidence that seasonal dark streaks on warm Martian slopes, called recurring slope lineae (RSL), are something other than salty water, as scientists originally thought and hoped for. Colin is also the lead author in the Nature… Read More

Sols 1909-1910: Driving “home” for the holidays

18 December 2017

Today’s planning session kicked off with an important decision about where to drive and how that will set us up for exciting science over the holidays.  After much discussion, the team decided to return to some familiar yet intriguing rocks that we explored last week, visible in the… Read More

Sol 1904-1905: Curiosity's Arm Workout

15 December 2017

I was on downlink for ChemCam on Wednesday, so I was busy analyzing the latest data while the uplink team decided what to do for sols 1904 and 1905. We had some nice data, including a gorgeous image of a finely-layered rock named "Trotternish" (shown above).The sol 1904 plan started with some… Read More

Wonder No More: Back to the Moon We Go!

12 December 2017

Inquiring minds have wanted to know if astronauts will ever go back to the Moon, and if so, when? Neil Armstrong’s words “The eagle has landed" were uttered 45 years ago. Astronauts Gene Cernan and Jack Schmitt took the most recent American steps on the Moon, in 1972. Twelve astronauts… Read More

Sols 1899-1901: SAM Evolved Gas Analysis

8 December 2017

The plan for this weekend is to finish up the investigation of Vera Rubin Ridge stop #9 and drive toward the next stop.  On Sol 1899, Mastcam will acquire multispectral observations of possibly hematite-rich outcrops at "Farr" and the Sol 1897 contact science target "Wick."  Both… Read More

This Software Rocks for Processing Planetary Data

22 November 2017

The Integrated System for Imagers and Spectrometers (ISIS) is one of the most reliable specialty software packages designed for cartographic and scientific processing of images acquired from NASA and other science missions. This software rocks and it’s free. Although many planetary… Read More

Sols 1868-1869: Hello gorgeous

6 November 2017

It was a good weekend on Mars.  Curiosity spent the weekend exploring a beautiful outcrop of sedimentary rocks (shown in the above image) as part of our continued investigation of the middle and upper parts of Vera Rubin Ridge.  Images like these will help us figure out the environment in… Read More

Dawn Spacecraft Contribution and Fate

30 October 2017

Halloween day prompts a chilling question: If you were a spacecraft, which fate would you prefer? Would you choose to remain in a stable orbit forever around Ceres or would you prefer to crash into Saturn and burn? The Cassini spacecraft crashed into Saturn and was engulfed in flames in… Read More