Welcome to the JMARS website

JMARS is an acronym that stands for Java Mission-planning and Analysis for Remote Sensing. It is a geospatial information system (GIS) developed by ASU's Mars Space Flight Facility to provide mission planning and data-analysis tools to NASA scientists, instrument team members, students of all ages and the general public. JMARS has been available to the public since 2003. It is used in over 100 countries and has over 6,000 active users.

Action Required: Update JMARS to Continue Using It

Users running JMARS versions older than 5.7.0 may be unable to start the application and may see a message reporting a connectivity problem. This is caused by a recent server security certificate update that older versions of JMARS are not able to accept.

What you need to do:
Download and install the latest version of JMARS from the JMARS website (https://jmars.mars.asu.edu). Because affected versions cannot reach the in-app "Check for Updates" feature, the update must be downloaded manually.

Once the latest version is installed, JMARS will connect normally. Installing in the same directory as the currently installed version is fine. Your existing settings and data are not affected.

If you continue to have problems after updating, please contact us at help@jmars.asu.edu.

JMARS Announcements

  1. 2026/09/22 - Join us for Virtual office hours! September, 25th @12pm Arizona time
    Come talk to JMARS Developers and ask any questions you may have!
  2. 2026/09/21 - New Tutorial and JMARS Functionality
    Learn how to export images in JMARS. In JMARS, we can now export static and georeferenced images.
  3. 2026/08/11 - JMARS release 5.7.1
    JMARS version 5.7.1 brings several usability improvements and bug fixes mostly related to Radar Focus Panel..
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Information

Weekly Virtual Office Hours

Have any questions? On Friday September, 25th @12pm MST, Come join us for office hours on Zoom to learn and ask any questions you might have! Click Here for more information

Join Us On Discord - The JMARS discord server is a great place to interact with other JMARS users, ask the JMARS team questions and share JMARS information.
CryoMars Workshop JMARS Tutorials Click Here

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JMARS Public Downloads

mars

The following JMARS installer is likely the best for your system:  

This JMARS installation includes several planetary bodies, such as Mars, Earth, Earth's moon, Mercury, Venus and many more

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Need help? Instructions on installation are below.

mars2035

The following JMARS 2035 installer is likely the best for your system:  

JMARS 2035 Website and Video Tutorials

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msip

The following JMARS MSIP installer is likely the best for your system:  

This is the JMARS MSIP version of JMARS for the Mars Education Program.

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earth

The following J-Earth installer is likely the best for your system:  

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vesta

The following J-Vesta installer is likely the best for your system:  

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ceres

The following J-Ceres installer is likely the best for your system:  

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Instructions for Installing JMARS:  Windows | MacOS | Linux


Video Instructions for Installing JMARS:  Windows | MacOS | Linux


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