Noun
English Wikipedia has an article on:space weatherWikipedia
space weather (uncountable)
(meteorology) Any phenomena related to the radiation and particles emitted by the Sun, especially in the vicinity of the Earth that may have an effect on the Earth or human activity in the space.
Space weather Radio blackouts on Earth caused by space weather are measured by the National Oceanic and Atmospheric Administration on a scale that goes from 1 (minor) to 5 (extreme). Source: Internet
Space weather implications of the 20 January 2005 solar energetic particle event. Source: Internet