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Explorers and Heliophysics Projects Division (EHPD)

The Explorers and Heliophysics Projects Division (EHPD) consists of three programs: Explorers, Living With a Star (LWS), and Solar Terrestrial Probes (STP). The Explorers Program is an uncoupled Program which provides frequent flight opportunities for world-class scientific investigations from space within NASA Heliophysics and Astrophysics Space Science goals. Explorers projects are typically implemented in the Principal Investigator (PI) mode. The LWS Program is a loosely coupled Program which provides missions to improve our understanding of how and why the Sun varies, how the Earth and Solar System respond, and how the variability and response affects humanity in Space and on Earth. The STP Program is an uncoupled Program which provides missions to understand the fundamental physics processes from the Sun to Earth, to outer planets, and beyond to the interstellar medium.

>> Find out more about Explorers, Living With a Star, or
Solar Terrestrial Probes.

NASA In the News


Videos, Animations and More!

AIM spacecraft shows the sky over Antarctica is glowing electric blue due to the start of noctilucent, or night-shining, cloud season in the Southern Hemisphere. Scientists analyzed sunspot images from a trio of observatories - including the Big Bear Solar Observatory, which captured this footage - to make the first-ever observations of a solar wave traveling up into the sun's atmosphere from a sunspot. This footage from Hinode's X-ray Telescope is a composite of nearly two months of images, from Aug. 17, 2013, to Oct. 4, 2013.

>> For more

Organization


ehpd organization chart image used to link to all organization charts
Organization charts for the Explorers & Heliophysics Projects Division

Updated 04.2024
>> Org Charts



The Explorers and Heliophysics Projects Division mission to support Heliophysics, Physics and Astronomy

Missions Status

Explorers Missions

  • CASE
    Launch Date: 2029
    Phase C: Final Design & Fabrication
  • COSI
    Launch Date: 2027
    Bridge Phase B: Design & Technology Completion
  • EUVST
    Launch Date: November 2028
    Phase B: Design & Technology Completion
  • EZIE
    Launch Date: September 2024
    Phase D: System Assembly, Integration & Test, Launch
  • HelioSwarm
    Launch Date: 2029
    Phase B: Design & Technology Completion
  • MUSE
    Launch Date: 2027
    Phase B: Design & Technology Completion
  • PUNCH
    Launch Date: February 2025
    Phase D: System Assembly, Integration & Test, Launch
  • SPHEREx
    Launch Date: February 2025
    Phase C: Final Design & Fabrication
  • SunRISE
    Launch Date: April 2024
    Phase D: System Assembly, Integration & Test, Launch
  • TRACERS
    Launch Date: February 2024
    Phase C: Final Design & Fabrication

Living With a Star Missions

Solar Terrestrial Probes Mission

NET = No Earlier Than
JFY = Japanese Fiscal Year

Related Sites

Internal Sites

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