Trump dialed into a NASA press conference after the Nancy Grace Roman Space Telescope launched aboard a SpaceX Falcon Heavy from Florida.

NASA began a new mission to probe some of the biggest mysteries in astrophysics and cosmology with the launch on Sunday of the U.S. space agency's new flagship astronomical observatory, ​a repurposed spy satellite that will capture panoramic views of the cosmos.

CAPE CANAVERAL, Florida, Aug 30 : NASA began a new mission to probe some of the biggest mysteries in astrophysics and cosmology with the launch on Sunday of the U.S. space agency's new flagship astronomical observatory, a repurposed spy satellite that will capture panoramic views of the cosmos.The Nancy Grace