The Sun

Goddard Space Flight Center
Heliophysics
Heliophysics Division
Parker Solar Probe (PSP)
Science & Research
Science Mission Directorate
Solar Flares
Solar Orbiter
Solar Wind
Space Weather
The Sun
Since the 1960s, astronomers have wondered how the Sun’s supersonic “solar wind,” a stream of energetic particles that flows out into the solar system, continues to receive energy once it leaves the Sun. Now, thanks to a lucky lineup of a NASA and an ESA (European Space Agency)/NASA spacecraft both currently studying the Sun, they […]
Posted August 30, 2024
Earth's Atmosphere
Earth's Magnetic Field
Goddard Space Flight Center
Heliophysics
Heliophysics Division
ICON (Ionospheric Connection Explorer)
Ionosphere
Missions
Science Mission Directorate
Space Weather
The Sun
After contributing to many important findings on the boundary between Earth’s atmosphere and space — an area where space weather can interfere with both satellites and communications signals — NASA’s ICON (Ionospheric Connection Explorer) mission has come to an end.
Posted July 24, 2024
2023 Solar Eclipse
2024 Solar Eclipse
Heliophysics
Heliophysics Division
Parker Solar Probe (PSP)
Science Activation
The Sun
The Heliophysics Big Year (HBY) is a global celebration of the Sun’s influence on Earth and the entire solar system. It began with the Annular Solar Eclipse on Oct. 14, 2023, continued through the Total Solar Eclipse on Apr. 8, 2024, and will conclude with Parker Solar Probe’s closest approach to the Sun in December […]
Posted July 9, 2024
Earth's Atmosphere
Goddard Space Flight Center
GOLD (Global-scale Observations of the Limb and Disk)
Heliophysics
Ionosphere
The Sun
Who knew Earth’s upper atmosphere was like alphabet soup? NASA’s Global-scale Observations of the Limb and Disk (GOLD) mission has revealed unexpected C- and X-shaped formations in an electrified layer of gas high above our heads called the ionosphere.
Posted June 27, 2024
Mars
Curiosity (Rover)
Goddard Space Flight Center
Heliophysics
Jet Propulsion Laboratory
Mars Science Laboratory (MSL)
MAVEN (Mars Atmosphere and Volatile EvolutioN)
The Solar System
The Sun
The Sun will be at peak activity this year, providing a rare opportunity to study how solar storms and radiation could affect future astronauts on the Red Planet. In the months ahead, two of NASA’s Mars spacecraft will have an unprecedented opportunity to study how solar flares — giant explosions on the Sun’s surface — […]
Posted April 29, 2024
Ames Research Center
Goddard Space Flight Center
Heliophysics
Heliophysics Division
IRIS (Interface Region Imaging Spectrograph)
MUSE (Multi-slit Solar Explorer)
Sounding Rockets
Sounding Rockets Program
Sunspots
The Sun
Did you know the Sun has moss? Due to its resemblance to the earthly plants, scientists have named a small-scale, bright, patchy structure made of plasma in the solar atmosphere “moss.” This moss, which was first identified in 1999 by NASA’s TRACE mission, blossoms around the center of a sunspot group, where magnetic conditions are […]
Posted April 16, 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
Heliophysics Division
Ionosphere
Skywatching
Solar Eclipses
Space Weather
The Sun
The April 8, 2024, total solar eclipse will produce stunning views across North America. While anyone along the eclipse path with a clear sky will see the spectacular event, the best view might be 50,000 feet in the air, aboard NASA’s WB-57 jet planes. That’s where a trio of NASA-funded teams are sending their scientific […]
Posted April 3, 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
Citizen Science
Comets
Heliophysics
Skywatching
SOHO (Solar and Heliospheric Observatory)
The Solar System
The Sun
On March 25, 2024, a citizen scientist in the Czech Republic spotted a comet in an image from the Solar and Heliospheric Observatory (SOHO) spacecraft, which has now been confirmed to be the 5,000th comet discovered using SOHO data. SOHO has achieved this milestone over 28 years in space, even though it was never designed […]
Posted March 27, 2024
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