Solar Dynamics Observatory (SDO)

General
Ames Research Center
Heliophysics
Solar Dynamics Observatory (SDO)
Sunspots
The Sun
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 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
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
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
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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