Live coverage: Rosetta’s final hours

Carol Raymond helps lead the Dawn science team at NASA’s Jet Propulsion Laboratory in Pasadena, California, where she oversees research investigating comets and asteroids, including the two objects visited during Dawn’s decade-long mission: Vesta and Ceres.

SpaceX test-fired its next Falcon 9 rocket at NASA’s Kennedy Space Center on Saturday in preparation for the company’s 17th launch of the year, a mission tentatively set for liftoff Wednesday with a secretive payload named Zuma for the U.S. government.

Eight days after a dramatic spacewalk to inspect the site of a leak in the hull of his Soyuz ferry ship, Russian commander Sergey Prokopyev, German flight engineer Alexander Gerst and NASA astronaut Serena Auñón-Chancellor geared up to depart the International Space Station Wednesday for a fiery plunge back to Earth.