Q&A with Anton Zeilinger, acclaimed quantum physicist

China launched a Long March rocket last week with a satellite Western analysts believe will conduct all-weather global radar surveillance for the Chinese military.

Ten small high-resolution observation satellites for Satellogic — an Argentine company in the midst of deploying a fleet of Earth-imaging spacecraft — successfully launched Friday on a Chinese Long March 6 rocket.

Two Earth-imaging satellites and an experimental solar sail payload rocketed into orbit Thursday aboard a Chinese Long March 4B launcher, the first flight for China’s Long March 4 rocket family since an upper stage failure in May.