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Sunspots can be seen on this image of solar radiation. Each sunspot lasts a few days to a few months, and the total number peaks every 11 years. The darker spots accompany bright white blotches, called faculae, which increase overall solar radiation. Credit: NASA/Goddard/SORCE

Plasma flow near sun’s surface explains sunspots, other solar phenomena

Understanding previously mysterious properties of the sun.
These images show the steadily improving view of the Moon’s gamma-ray glow from NASA’s Fermi Gamma-ray Space Telescope. Each 5-by-5-degree image is centered on the Moon and shows gamma rays with energies above 31 million electron volts, or tens of millions of times that of visible light. At these energies, the Moon is actually brighter than the Sun. Brighter colors indicate greater numbers of gamma rays. This image sequence shows how longer exposure, ranging from two to 128 months (10.7 years), improved the view. Credits: NASA/DOE/Fermi LAT Collaboration

Moon glows brighter than sun in images from NASA’s Fermi

Nothing can beat the brightness of Sun, but in a set of new images captured by NASA's Fermi space telescope, the moon seems to...
The Big Red Plasma Ball is pictured in Sterling Hall. It’s one of several pieces of scientific equipment being used to study the fundamental properties of plasma in order to better understand the universe, where the hot gas is abundant. PHOTO: JEFF MILLER

Physicists recreate mini sun to study solar winds and plasma burps

With their mini-sun in place, the researchers can take measurements at many points inside the ball, allowing them to study solar phenomena in three dimensions.

After NASA, ISRO wants to pursue India’s first mission to the Sun in 2020

Indian Space Research Organization (ISRO) now has its eyes on the Sun with solar mission Aditya-L1 in 2020.
A constant outflow of solar material streams out from the Sun, depicted here in an artist's rendering. On June 20, 2019, NASA selected two new missions – the Polarimeter to Unify the Corona and Heliosphere (PUNCH) mission and Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (TRACERS) – to study the origins of this solar wind and how it affects Earth. Together, the missions support NASA’s mandate to protect astronauts and technology in space from such radiation. Credits: NASA

NASA selects two missions to study sun, its effects on space weather

NASA recently selected two new missions to study our sun and its dynamic effects on the space weather. One mission will study the sun's...
Sunspots appear on the surface of Earth's sun. (Credit: NASA/SDO)

Simulations suggest that our sun may have dual personality

Researchers at CU Boulder have developed a computer simulation of the sun’s interior and discovered the hints that the Sun may have a dual...
Parker Solar Probe helps solve sun's super-heating mystery

Parker Solar Probe helps solve sun’s super-heating mystery

For more than a half-century, since the problem of coronal heating was discovered in the 1940s, astronomers have tried to establish why the Sun's...

Parker Solar Probe completes second close approach to the Sun

Launched on August 12, 2018, the probe has reached its perihelion, the second point on its orbit furthest from the Sun and is now...
Sun's magnetic field is ten times stronger than previously believed

Sun’s magnetic field is ten times stronger than previously believed

According to a new collaborative study by the Queen's University Belfast and Aberystwyth University, the sun's magnetic field is ten times stronger than previously...