Space weather

An aurora ( aurorae or auroras) is a natural light display in Earth’s upper atmosphere caused by charged particles from the Sun colliding with atoms in the atmosphere. These collisions excite oxygen and nitrogen, which then emit light of different colors such as green, red, and purple. When observed in high-latitude regions they are called polar lights and aurora polaris. In the Arctic they are called northern lights (aurora borealis); in the Antarctic, the terms southern lights (aurora australis) are used. Auroras display dynamic patterns of radiant light that appear as curtains, rays, spiral

temporary disturbance of the Earth's magnetosphere caused by a disturbance in the interplanetary medium

space observatory

STEREO (Solar TErrestrial RElations Observatory) is a solar observation mission. Two nearly identical spacecraft (STEREO-A, STEREO-B) were launched in 2006 into orbits around the Sun that cause them to respectively pull farther ahead of and fall gradually behind the Earth. This enabled stereoscopic imaging of the Sun and solar phenomena, such as coronal mass ejections.

solar observatory

branch of space physics concerned with conditions in the Solar System

Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission began in February 2007 as a constellation of five NASA satellites (THEMIS-A through THEMIS-E) to study energy releases from Earth's magnetosphere known as substorms, magnetic phenomena that intensify auroras near Earth's poles. The name of the mission is an acronym alluding to the Titan Themis.

thumb|upright=1.5|This image presents various wavelengths of light produced by the Sun.

NASA space mission in the Van Allen radiation belts

Wikimedia disambiguation page

Enhanced ionization of the ionosphere

Chinese space project

Ground level manifestation of space weather

NOAA laboratory and service center

federal scientific institute

A spiral, geomagnetic storm

Branch of solar physics and aeronomy

pertinent to space weather conditions