of discovery July 8 - Announcement of opportunity for Cluster guest investigators June 3 – The Cluster archive: more than 1000 users April 24 - High-speed plasma jets: origin uncovered March 11 - Shocking recipe for 'killer electrons' January 20 - Multiple rifts in Earth's magnetic shield 2009 October 7 - ESA extends the Cluster mission until December 2012 July 16 – Cluster shows how solar wind is heated at electron scales June 18 - Cluster and Double Star: 1000 publications April 29 - Monitoring the impact of extreme solar events March 25 - Cluster's insight into space turbulence February 9 - ESA extends the Cluster mission until the end of 2009 January 14 – Cluster detects invisible escaping ions 2008 December 15 - The science of space weather December 5 - Looking at Jupiter to understand Earth October 17 - Highlights from Cluster-THEMIS workshop August 27 - Cluster examines Earth-escaping ions August 11 - Electron trapping within reconnection June 27 - Beamed radio emission from Earth June 9 - Reconnection - Triggered by Whistlers? March 7 - Solitons found in the magnetopause January 23 - Cluster result impacts future space missions 2007 December 6 - Cluster explains nightside ion beams November 21 - Cluster captures the impact of a Coronal Mass Ejection November 9 - Cluster probes generalized Ohm's law in space October 22 - Cluster monitors convection cells over the polar caps September 11 - Cluster and Double Star pinpoint the source of bright aurorae July 26 - Cluster helps reveal how the Sun shakes the Earth's magnetic field June 29 - Cluster unveils a new 3D vision of magnetic reconnection June 21 - Formation flying at closest-ever separation May 11 - Cluster reveals the reformation of the Earth's bow shock April 12 - Cluster finds new clues on what triggers space tsunamis March 26 - First direct evidence in space of magnetic reconnection in turbulent plasma March 12 - A leap forward in probing magnetic reconnection in space February 9 - New insights in the auroral electrical circuit revealed by Cluster 2006 December 29 - 1000th Orbit for the Cluster Mission December 6 - Cluster finds magnetic reconnection within giant swirls of plasma November 13 - Cluster takes a new look at the plasmasphere October 5 - Double Star and Cluster witness pulsated reconnection for several hours August 24 - Cluster links magnetic substorms and Earthward directed