ITM Physics Laboratory

Exploring the Heart of Space Weather with the Geospace Dynamics Constellation

Doug Rowland | The Geospace Dynamics Constellation, or GDC, will provide the first direct global measurements of Earth’s atmospheric interface to space — a region where disturbances can cause space weather effects like scrambling of communications and navigation signals, satellite orbit disruptions, and induced currents that can trigger power outages on Earth. GDC’s unprecedented multi-point observations in the heart of this interface region will provide a shift in perspective on this region akin to the launch of the first weather satellites, allowing scientists to understand this complex, interconnected system as a whole. NASA Science Theater at AGU 2020!

The GDC Mission constellation concept

Find out more at the GDC Website

GDC Mission webpage. Within the region connecting our home to space, we see how weather from above and below impact our ability to live and work.

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Find Fliers and posters about GDC here

The mission Poster and slide from the GDC town hall are at the mission website .

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Planned GDC Ephemeris

GDC Planned Ephemeris Data Now Available for Download at the Mission website - Start planning now for how you will interact with GDC.

Upcoming Events

Tuesday, May 21, 2024
01:00 PM - 02:00 PM
Too much and too little water: Using hydrometeorological modeling to characterize and understand water extremes
Dr. Mimi Hughes, Research Meteorologist, NOAA’s Physical Sciences Laboratory
Read more about this event
Wednesday, May 22, 2024
01:00 PM - 02:00 PM
Artificial Intelligence Town Hall
Join us for an Artificial Intelligence Town Hall hosted by Administrator Bill Nelson and Deputy Administrator Pam Melroy.
Read more about this event
Wednesday, May 22, 2024
03:00 PM - 04:30 PM
Scientific Colloquium
Vortex: The Bhola Cyclone of November 12, 1970
Scott Carney and Jason Miklian
Read more about this event

Featured Videos

A Solar Wind Sea Shanty

Parodying the classic sea shanty "The Wellerman," “The Solar Wind: A Heliophysics Sea Shanty” illuminates one of the primary connections between the Sun and Earth, the solar wind. This video can be shared and downloaded at YouTube .

Welcome to the Ionosphere!

This little-explored region exists between space and Earth. It is home to the aurora, the international space station, a variety of satellites, and radio communication waves. Join us as we venture to this interface to space! This video can be downloaded from the Scientific Visualization Studio

Chasing Lightning: Spritacular

Follow along and watch this wonderful introduction to our newest citizen science group, Spritacular, as they learn more about all kinds of lightning, from elves, sprits, to transient luminous events. Get involved at

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How you too can get involved with NASA Science

Science is for everyone and we want you to get involved! Check out all the amazing ways at the Goddard Citizen Science website!

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Join the chase of lightning from the ground, engage with a global community of observers, and contribute your observations for NASA Science at Spritacular!

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Want to learn more about the aurora and help scientist understand these dancing lights? Join up with others at Aurorasaurus and even get emails when the aurora might be in your area!

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Radio Jove

Space is filled with radio waves! Help scientists learn more about where all these waves come from and how they are used to tell us more about our place in the universe at Radio Jove.


Earth Observatory Picture

Dusty Spring in the Tarim Basin