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ITM Physics Laboratory

Providing the Country with a cutting edge understanding of the Earth-Space environment, enabling us to better live, work, and study in space and here on Earth.

To ensure sustained scientific and technological progress, we provide foundations in theory, modeling, data analysis, data archival, instrumentation development, and mission formulation. We have an important role in enabling the development of long-lead technology and science as well as maintaining a knowledge base in fields necessary for the further development, safety, and security of our country.

Geospace Dynamics Constellation (GDC)

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 beauty and hazards co-exist - where space weather disturbances impact communication and navigation signals, satellite orbits, 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 generational shift in perspective on this region, 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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The Latest GDC Fact Sheet

The latest version fo the 2 page fact sheet is on our ITM resource page and other GDC specific resources 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

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 Spritacular.org

Discovering Earth’s Third Global Energy Field

For nearly 60 years, scientists have studied the "polar wind," a stream of particles escaping Earth's poles into space, theorizing that a weak, unmeasured ambipolar electric field drives the outflow, a theory finally supported by recent findings. Learn more here: https://go.nasa.gov/3XcDDLD

Citizen Science

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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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Spritacular

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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Aurorasaurus

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.

Local News

 

Wonseok (Andrew) Lee (CUA/675) Guiping Liu (675), Dong Wu (613), Douglas Rowland (675), 2025: "Ionospheric Response to the 10...

Wednesday, March 12, 2025
 

Zhang, J. (Utah State U.), O. Jens (Clemson Univ.), N.M. Pedatella (UCAR), G. Liu (675), 2005 "Impact of Arctic and Antarcti...

Friday, January 31, 2025
 

The chapter "Traveling Ionospheric Disturbances" was published in the "Reference Module in Earth Systems and Environmental Sc...

Wednesday, January 22, 2025
 

The paper "Resolving the Generation Mechanisms and Electrodynamical Effects of Medium Scale Traveling Ionospheric Disturbanc...

Wednesday, January 22, 2025
 

We have a new paper out with our colleagues! Murphy, K. (Northumbria University) , Halford, A. J. (675), Liu, V. (John Hopki...

Monday, January 06, 2025
ASTRONOMY PICTURE OF THE DAY

A Solar Eruption from SDO

What just leapt from the Sun? A towering structure of solar plasma suddenly rose from the Sun's surface and unfurled into space -- a structure so large that many Earths would easily fit within it-- marking the onset of a dramatic Coronal Mass Ejection (CME). The event was captured in striking detail in late 2024 by NASA's Solar Dynamics Observatory (SDO), whose continuous monitoring improves space weather forecasts and helps humanity better understand how solar activity affects satellites, GPS, radio communications, and power grids on Earth. The featured video blends three extreme-ultraviolet views from SDO’s Atmospheric Imaging Assembly (AIA), revealing how plasma at different temperatures surged upward as the eruption unfolded. Here, red highlights cooler, denser material lifted from the Sun’s lower atmosphere, while yellow traces hotter, million-degree coronal loops stretching outward as magnetic fields open. After the main outburst, the Sun’s magnetic fields quickly reorganize.

Earth Observatory Picture

Ash Streams from Klyuchevskaya Sopka