Astronauts Terry Virts and space station commander Barry “Butch” Wilmore ventured back outside Sunday for their third spacewalk in eight days to complete initial preparations for upcoming dockings by commercially developed Boeing and SpaceX crew ferry ships.
A new class of Boeing-built spacecraft will fly into orbit for the first time Sunday aboard a Falcon 9 rocket, combining Boeing’s electric propulsion technology with SpaceX’s bargain launch prices to send up communications satellites at a fraction of the typical cost.
Two communications spacecraft built by Boeing and owned by Eutelsat and Asia Broadcast Satellite will ride a Falcon 9 rocket into orbit Sunday, and these pictures show the satellites stacked together and prepared for liftoff from Cape Canaveral.
The discovery of puzzling bright spots on Ceres, the Texas-sized world now being studied by NASA’s Dawn spacecraft, has scientists wondering whether the features could be plumes from volcanoes launching material into space.
The proposals are in for a new NASA mission for launch in 2021 to explore the solar system, and scientists have submitted concepts for probes to the moon, planets, asteroids and comets for a chance to win $450 million in federal funding.