Interstellar Mapping and Acceleration Probe

Studying the solar wind boundary of our solar system

The Interstellar Mapping and Acceleration Probe (IMAP) is a mission that will study the Sun’s heliosphere. It will investigate two important and coupled topics: interaction of the solar wind with the local interstellar medium and the acceleration of energetic particles.

Mission Class:

Larger Missions

Mission Status:


LASP Roles:


Science Target:


Mission Focus:

Solar Physics, Space Weather

Primary Mission Site:

Artist's drawing of the IMAP mission

Launch Date: currently planned for February 2025
Prime Mission: 3 years planned

Lead Institution: Princeton University

Lead Funding Agency: Solar Terrestrial Probes program

Partners: NASA Goddard Space Flight Center, John Hopkins University Applied Space Laboratory, SpaceX