ISS News STS-135 Crew To Visit Oval Office By Keith Cowing NASA Watch October 31, 2011 Filed under space shuttle, STS-135, white house Keith’s note: President Obama will host the crew of STS-135 on Tuesday at 12:20 pm EDT in the Oval Office. Keith Cowing NASA Watch founder, Explorers Club Fellow, ex-NASA, Away Teams, Journalist, Space & Astrobiology, Lapsed climber.