Solar Dynamics Observatory (SDO)

Auroras
Curiosity (Rover)
Earth's Magnetic Field
Goddard Space Flight Center
GOLD (Global-scale Observations of the Limb and Disk)
Heliophysics
Heliophysics Division
Magnetosphere
Magnetospheric Multiscale (MMS)
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NASA Centers & Facilities
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Solar Dynamics Observatory (SDO)
The Solar System
The Sun
THEMIS-ARTEMIS (Time History of Events and Macroscale Interactions During Substorms - Acceleration, Reconnection, Turbulence and Electrodynamics of Moon's Interaction with the Sun)

What NASA Is Learning from the Biggest Geomagnetic Storm in 20 Years

One year on, NASA scientists are still making huge discoveries about the largest geomagnetic storm to hit Earth in two decades, the Gannon storm. The findings are helping us better understand and prepare for the ways in which the Sun’s activity can affect us. One year ago today, representatives from NASA and about 30 other […]
Posted May 9, 2025
General
Ames Research Center
Heliophysics
Solar Dynamics Observatory (SDO)
Sunspots
The Sun

Ready, Set, Action! Our Sun is the Star in Dazzling Simulation

NASA supercomputers are shedding light on what causes some of the Sun’s most complex behaviors.
Posted November 21, 2024
Goddard Space Flight Center
Solar Dynamics Observatory (SDO)

NASA Awards Contract Extension for Solar Science Instrument

NASA has awarded a contract extension to Stanford University, California, to continue the mission and services for the Helioseismic and Magnetic Imager (HMI) instrument on the agency’s Solar Dynamics Observatory (SDO).
Posted September 24, 2024
2024 Solar Eclipse
Ames Research Center
Eclipses
Goddard Space Flight Center
Heliophysics
Modeling
Science & Research
Skywatching
Solar Dynamics Observatory (SDO)
Solar Eclipses

2024 Total Solar Eclipse: Prediction vs. Reality

Before a total solar eclipse crossed North America on April 8, 2024, scientists at Predictive Science Inc. of San Diego aimed to foresee what the Sun’s outer atmosphere, the corona, would look like during totality. The predictions help researchers understand the accuracy of their models of the Sun’s corona, which extends along its magnetic field.
Posted May 2, 2024
Nancy Grace Roman Space Telescope
Galaxies, Stars, & Black Holes
Goddard Space Flight Center
Heliophysics
Missions
Science & Research
Solar Dynamics Observatory (SDO)
Stars
Sunspots
TESS (Transiting Exoplanet Survey Satellite)
The Solar System
The Sun
The Universe

How NASA’s Roman Telescope Will Measure Ages of Stars

Guessing your age might be a popular carnival game, but for astronomers it’s a real challenge to determine the ages of stars. Once a star like our Sun has settled into steady nuclear fusion, or the mature phase of its life, it changes little for billions of years. One exception to that rule is the […]
Posted April 4, 2024
2024 Solar Eclipse
Eclipses
Heliophysics
Skywatching
Solar Dynamics Observatory (SDO)
Solar Eclipses
Space Weather
The Sun

Scientists Use NASA Data to Predict Solar Corona Before Eclipse

Our Sun, like many stars, is adorned with a crown. It’s called a corona (Latin for “crown” or “wreath”) and consists of long, thread-like strands of plasma billowing out from the Sun’s surface. The powerful magnetic field of the Sun defines these strands, causing them to ripple and evolve their structures constantly. The strands are […]
Posted April 2, 2024
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24
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1
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41
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22
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8
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21
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2
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31
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9
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18
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16
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96
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58
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1
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9
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37
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10
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48
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293
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67
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83
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7
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12
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18
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9
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33
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2
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3
Anne C. McClain
4
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22
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2
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4
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9
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4
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1
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1
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2
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2
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34
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3
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7
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8
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79
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1
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4
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14
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1
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4
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4
Mars Climate Orbiter
1
National Space Council Users' Advisory Group (NSpC UAG)
1
Small Business Innovation Research / Small Business
10
STS-41B
3
Marshall Earth Sciences
29
Neptune-Like Exoplanets
8
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7
E. Michael Fincke
1
Trace Gas Orbiter (TGO)
1
Women's History Month
17
Photojournal
66
Robert L. Gibson
1
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2
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1
Apollo 9
2
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18
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11
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10
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176
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1
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8
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1
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8
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1
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5
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14
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20
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28
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1
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2
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2
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4
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1
Outer Planets & Ocean Worlds Program
1
Raja Chari
3
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2
Glenn History
29
Ames Earth Science Division
1
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6
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6
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53
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1
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1
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1
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40
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107
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9
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3
Planetary Nebulae
13
Saturn
29
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18
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1
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5
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31
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1
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4
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17
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27
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1
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Carl E. Walz
1
Dawn
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