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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.

Latest EHPD News

SwRI-Led PUNCH Mission to Image Sun's Outer Corona Enters Phase B NASA's TESS Mission Spots Its 1st Star-shredding Black Hole Black Hole Seeds Missing in Cosmic Garden Rocket Team: Are Solar Eruptions Messy, or Neat? NASA Satellite spots a Mystery That's Gone in a Flash

Click on images to read features.       >> For news archive

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


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

Updated 09.2018
>> Org Charts

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

Missions Status

Explorers Missions

    Launch Date: December 2021
    Phase B: Design & Technology Completion
  • ICON
    Launch Date: October 9, 2019
    Phase D: System Assembly, Integration & Test, Launch
  • IXPE
    Launch Date: April 2021
    Phase C: Final Deign & Fabrication
    Launch Date: January 2022
    Phase C: Final Deign & Fabrication
  • For all Explorers Missions

Living With a Star Missions

Solar Terrestrial Probes Mission

NET = No Earlier Than

Related Sites

Internal Sites

Follow Explorers Missions

IRIS  (Operating)
Check out IRIS on Facebook        
NuSTAR  (Operating)
Check out NuSTAR on Facebook Follow NuSTAR on Twitter      
TESS  (Operating)
Check out TESS on Facebook Check out TESS on Google+ Follow TESS @ NASA on Twitter Follow TESS @ MIT on Twitter  
WISE  (Past)
Check out WISE on Facebook Follow WISE on Twitter      

Follow LWS Missions

SDO  (Operating)
Check out SDO on Facebook Follow SDO on Twitter Check out SDO on YouTube Check out SDO on Flickr Check out SDO's Blog
Van Allen Probes (Operating)
Check out Van Allen Probes on Facebook Follow Van Allen Probes on Twitter Check out Van Allen Probes on YouTube    

Follow STP Missions

HINODE  (Operating)
Check out HINODE on Youtube with NASA Check out SDO on Flickr      
MMS  (Operating)
Check out MMS on Facebook Follow MMS on Twitter Check out MMS on YouTube Check out MMS on Flickr Follow MMS on Pinterest
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