The Apollo program is arguably the most famous achievement of the United States regime, but how much do you really know about ...

the Apollo 14 and 15 moon missions of 1971 put the United States that much closer to the end of its Apollo series of spaceflights. For Russia, the year in space was both triumphant and tragic.

First author Mélanie Barboni holding a piece of lunar breccia prior to crushing and zircon extraction. This material relates to a paper that appeared in the Jan. 11, 2017, issue of Science ...