Mars Exploration Rovers

What's New

November 18, 2009: MER Release 22 includes data acquired on sols 1801 through 1890 for both rovers. This release also includes revised APXS, Mössbauer, and RAT EDR data products from sols 1-1800 for both rovers. See the file errata.txt in each archive for details.

Geosciences Node Tools

The MER Analyst's Notebook is for scientists familiar with MER who want details of the science observations.

Additional ways to access MER data

• The Planetary Image Atlas is for users who are looking primarily for image data.
• The Geosciences Node MER online data repository provides direct links into those MER data sets that reside at Geosciences.
• Other MER data sets reside at the Imaging Node, Atmospheres Node, and NAIF Node.
• The PDS Data Set Search Page is a top-level search of MER data resources throughout PDS, including the above items.

MER Publications

A list of scientific papers on MER topics is available from the MER Analyst's Notebook Reference pages for Spirit and for Opportunity.

Upcoming MER Releases