Live coverage: Soyuz crew lands in Kazakhstan

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.

A Russian Soyuz rocket has reached its last stop before liftoff Friday with two Russian cosmonauts and veteran NASA flight engineer Jeff Williams, who is slated to break the record for the most cumulative time spent in space by a U.S. astronaut.

NASA Administrator Bill Nelson is set to discuss the agency’s decision following a rare mid-mission, agency-level flight readiness review. A press conference will begin no earlier than an hour following the conclusion of the discussion.