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

Isolated camera angle replays of Saturday morning’s predawn SpaceX Falcon 9 launch of the Dragon capsule to the International Space Station.

Chinese officials say they plan to share a portion of the nearly 4 pounds of lunar material returned by the Chang’e 5 mission with other countries, but an allocation for U.S. scientists will hinge on a change in U.S. policy restricting cooperation between NASA and China’s space program.

NASA has partially restored the Hubble Space Telescope to science mode after a software error temporarily halted observations, but engineers continue studying a problem that kept the telescope’s aperture door from closing and a separate concern with Hubble’s main camera.