We have updated the UCS Satellite Database, including launches through September 30, 2019. Lots of movement this time, with 209 satellites added and 53 removed for a total of 2,218 actively working satellites.
December 19, 2019 6:09 PM EDT
January 9, 2019 2:01 PM EDT
August 22, 2018 12:19 PM EDT
August 10, 2018 7:41 AM EDT
UPDATE: In September 2018, UCS released an animated feature and video that explains how space-based missile defense works. Check it out here.
Articles citing a classified 2011 report by the Institute for Defense Analysis (IDA) have mistakenly suggested the report finds that a constellation of only 24 satellites can be used for space-based boost-phase missile defense. Read More
August 10, 2018 7:40 AM EDT