Q&A with Keith Gendreau, principal investigator of the first X-ray space communications experiment (members only)

NASA is moving forward with a crucial test-firing of the core stage of the first Space Launch System heavy-lift rocket as soon as Jan. 17 after engineers were satisfied with the results of a fueling test last month.

A Russian Soyuz booster arrived at its launch pad on the Kazakh steppe Sunday, the last stop before liftoff Wednesday with a three-person crew bound for the International Space Station.

A Russian space freighter that failed to deliver supplies to the International Space Station last week is due to re-enter Earth’s atmosphere as soon as Thursday.