WASHINGTON — Even as NASA studies adding a common kick stage to its rocket catalog — to give the medium- and intermediate-class rockets it already offers an adrenaline shot for high-energy launches — ...

PARIS, Aug 19 (Reuters) - European scientists were poised to attempt a first in orbital gymnastics late on Monday, tapping into the gravity of the Moon and then the Earth in quick succession to guide ...

PARIS (Reuters) -European scientists were poised to attempt a first in orbital gymnastics late on Monday, tapping into the gravity of the Moon and then the Earth in quick succession to guide the JUICE ...