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Interstellar Mapping and Acceleration probe passes key milestone
IMAP will study the protective magnetic bubble that surrounds our solar system, called the heliosphere. Credits: NASA/Princeton/Johns Hopkins APL/Josh Diaz
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Interstellar Mapping and Acceleration probe passes key milestone
by Clarence Oxford
Los Angeles CA (SPX) Dec 04, 2023

NASA's Interstellar Mapping and Acceleration Probe (IMAP) has recently achieved a significant milestone by successfully completing Key Decision Point D (KDP-D). This vital step permits the transition of the IMAP mission from its development and design phase to the crucial stages of assembly, testing, and integration. The progress marks a pivotal moment for this ambitious project, aligning it on track towards a new launch window slated between late April and late May 2025.

Originally planned for no earlier than February 2025, the IMAP's launch date underwent a strategic reassessment during the KDP-D. This revision was undertaken to ensure that the project team is well-equipped with the necessary resources to meticulously address risks and technical complexities that may arise during the system integration and testing phases.

IMAP is set to serve as a modern-day cartographer in space. Its primary function is to elucidate the interactions between the solar wind - a constant stream of particles emitted by the Sun - and the materials originating from interstellar space. This interaction forms the basis of IMAP's mission to map the boundary of the heliosphere, the magnetic bubble generated by the solar wind. Understanding the heliosphere is crucial as it plays a pivotal role in shielding Earth from substantial quantities of harmful cosmic radiation.

Stationed approximately one million miles from Earth, IMAP is equipped with instruments designed to collect and analyze particles that penetrate through the heliosphere. This data is key to enhancing our understanding of the solar system's protective barrier and its interaction with interstellar space.

The IMAP mission is led by Principal Investigator David McComas, a renowned professor at Princeton University. McComas is at the forefront of this international collaboration, which includes over 20 partner institutions. The Johns Hopkins Applied Physics Laboratory (APL) is entrusted with the development phase of the mission, including the construction of the spacecraft, and will subsequently manage its operation.

This mission represents the fifth venture in NASA's Solar Terrestrial Probes (STP) Program portfolio, which is managed by the Explorers and Heliophysics Projects Division at NASA's Goddard Space Flight Center in Greenbelt, Maryland. The STP Program, part of NASA's Heliophysics Division of the Science Mission Directorate, focuses on investigating the Sun's influence on Earth and the solar system.

In an innovative move to engage the public, NASA is providing a unique opportunity to witness the assembly of the IMAP spacecraft. A live feed from the APL's clean room is now accessible on the IMAP mission website, allowing enthusiasts and the general public to observe the transformation of IMAP from a basic structure into a complex, fully operational spacecraft. This initiative reflects NASA's commitment to transparency and public engagement in its space exploration endeavors.

Related Links
Interstellar Mapping and Acceleration Probe (IMAP)
Stellar Chemistry, The Universe And All Within It

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