Russian ISS segment springs third leak in under a year

The Russian segment of the International Space Station (ISS) sprung its third coolant leak in under a year Monday, raising new questions about the reliability of the country's space program even as officials said crew members ...

The science of moon hopping

The videos of the first moon landing with astronauts bouncing around the lunar surface are looking like a lot of fun—but jumping around on the moon could also be good for astronaut's muscles, bones and the cardiorespiratory ...

page 3 from 30