Sunspots captured astronomers' interest, and with the expanding availability and quality of telescopes, were closely tracked until 1645. Despite huge interest in them, astronomers could find no ...

The cryovolcanic "centaur" comet 29P/Schwassmann-Wachmann has erupted four times in less than 48 hours, becoming unusually ...

The Sun’s activity is what gives us beautiful auroras – but it also has dramatic negative effects on satellites that go ...

Sunspot AR3842 erupted with an X7.1-class solar flare. NASA models predict that the coronal mass ejection created by the ...

Are the Northern Lights dangerous? Solar storms in May and October saw intense displays of aurora borealis across the U.S.

NASA images provide insights into the sun, moon, planets, and stars. Recent highlights include solar flares, Jupiter’s features, a unique Earth photo, and the Witch Hat nebula, showcasing the dynamic ...

The Origin of the Sun's Magnetic Field Could Lie Close to Its Surface May 22, 2024 — Surprise findings suggest sunspots and solar flares could be generated by a magnetic field within the Sun's ...

NASA's Solar Dynamics Observatory captured an X2.3 solar flare on November 6th, 2024, causing shortwave radio blackouts in ...

The Sun has once again unleashed a powerful solar flare and this time it triggered radio blackouts.  The flare, which ...

A November 6 solar flare hit X2.3-class in strength, causing Atlantic radio blackouts, with more potentially on the way if further solar flares are released.

Geomagnetic storming of this magnitude is common on NOAA’s 5-level scale. However, several sunspot regions on the Sun are ...