Astronomers track the sun's 11-year cycle by counting sunspots. Also, we're expecting a strong geomagnetic storm and aurora ...

NASA's Solar Dynamics Observatory (SDO ... The near-simultaneous outbursts erupted from three different sunspots, as well as a large magnetic filament located between the sunspots.

NEW YORK (AP) — A NASA spacecraft will make another close brush with the sun, the second of three planned encounters through ...

NASA astronomers are also continuing to track sunspots that have appeared on the surface of the Sun. These sunspots are typically the starting place for massive solar flares like this X-class ...

The physical correlation of magnetic intensity and sunspots is clearly revealed when we fade back and forth between a filtered (i.e., white light) image of the Sun with a magnetic image ...

CAPE CANAVERAL, Fla. (AP) — NASA astronauts Butch Wilmore and Suni Williams have returned to Earth after being stuck in space ...

NASA/Goddard Space Flight Center Caption This image was captured by the Solar Dynamics Observatory on March 10, 2012, at 12:29 p.m. EST in the 304 Angstrom wavelength.

The sun was well observed during the period of the Maunder Minimum and this lack of sunspots is well documented. This period of solar inactivity corresponded to a climatic period called the ‘Little ...

NASA astronauts Butch Wilmore and Suni Williams, who were stuck in space for more than nine months, are finally on their way ...