NASA will commemorate a quarter-century of comet discoveries and discuss upcoming comet encounters during a symposium at 9 a.m. EDT on Friday, Sept. 10, in the Knight Studio of the Newseum.
NASA will commemorate a quarter-century of comet discoveries and discuss upcoming comet encounters during a symposium at 9 a.m. EDT on Friday, Sept. 10, in the Knight Studio of the Newseum.