NASA will host a 3-day NASA Social for 25 of its social media followers Aug. 3-5 at the agency’s Jet Propulsion Laboratory in Pasadena, Calif. The NASA Social is scheduled to culminate in the landing of the Mars Science Laboratory’s Curiosity rover at Mars’ Gale crater. The landing is anticipated at approximately 10:31 p.m. PDT Aug. 5 (1:31 a.m. EDT Aug. 6). Read more.