NASA TV now has a full-time HD Channel available at no cost to cable and satellite service providers. Live coverage of space shuttle missions, on-orbit ... See more video of Earth captured by astronauts aboard the International Space Station, and rocket launches of advanced scientific spacecraft are among the programming offered on NASA HD. Also available are imagery from NASA’s vast array of space satellites, as well as media briefings, presentations by expert lecturers, astronaut interviews and other special events, all in the improved detail and clarity of high-definition.