#Cluster’s 20 years of studying Earth’s magnetosphere
“#Cluster’s 20 years of studying Earth’s magnetosphere” This artist’s impression shows Earth’s bow shock, a standing shockwave that forms when the solar wind meets our planet’s magnetosphere. Credit: ESA/AOES Medialab Despite a nominal lifetime of two years, ESA’s Cluster is now entering its third decade in space. This unique four-spacecraft mission has been revealing the…