Geomagnetic storm

The NOAA Space Weather Prediction Center issued a Severe (G4) Geomagnetic Storm Watch, marking the first such event since 2005.

When we consider the Sun’s influence on Earth and our climate, we tend to think about solar radiation.

NASA has selected two missions to study our sun and its effects on space weather. One mission will study the sun's mechanism of sending particles and energy to the solar system.

In what some have dubbed an "internet apocalypse," activity originating on the sun's surface could cause a massive communications outage on Earth.

A recent geomagnetic storm on January 30 caused the mesmerizing Northern Lights to grace parts of North America. However, this beautiful phenomenon also disrupted radio communications, including GPS signals and satellite communications. The storm was triggered by a coronal mass ejection from the sun, which occurred four days prior. Despite being classified as a minor G1-class geomagnetic storm by NASA, it still had a significant impact on Earth's magnetic field and electrical systems. Dr…

An aurora on March 8, 2012 shimmering over snow-covered mountains in Faskrudsfjordur, Iceland. Image courtesy of Jónína Óskarsdóttir. You can find more about this image and the solar storm that sparked this display of the Northern Lights at www.nasa.gov/mission_pages/sunearth/news/News030712-X5-4....

The limb of the Sun as it appeared at a wavelength of 171 angstroms, as seen in February, 2014 by the Solar Dynamics Observatory.

A new theory is welcome for those who are ready to dismiss dark matter altogether.

NASA's Jet Propulsion Laboratory, the leading center for robotic exploration of the solar system.