A rocket fails in China, an astronaut's farewell, tracks on Mars and more stellar photos from July 2017. Failure After Launch The Long March 5 Y2 rocket takes off from Wenchang Satellite Launch ...

Stargazers will be treated to a dazzling six-planet "alignment" this January.

Io is the third-largest natural satellite of Jupiter. Its thin atmosphere consists ... who was analyzing images from the Voyager 1 probe. Since then, scientists, including Scott Bolton from ...