CAPE CANAVERAL, March 31 : Amazon's Leo satellite internet unit signed a deal with Delta Air Lines to provide in-flight Wi-Fi on 500 of the airline's planes starting in 2028, inking its second major partnership in the skies as it races to launch more satellites and take on Elon Musk's Starlink. The deal ratchets up competition between Amazon's burgeoning satellite internet service and Starlink for a slice of the in-flight Wi-Fi market, even as Musk's satellite network remains far ahead in its