
An STS-125 crew member aboard the Space Shuttle Atlantis captured this still image of the Hubble Space Telescope as the two spacecraft continue their relative separation on May 19, 2009. Credit: NASA.

Backdropped by the blackness of space and the thin line of Earth's atmosphere, space shuttle Atlantis' payload bay, Canadian-built remote manipulator system robotic arm, vertical stabilizer and orbital maneuvering system pods are featured in this image photographed by the STS-125 crew on flight day 10. Credit: NASA.
As Atlantis’ crew prepares for landing Friday, mission managers are closely monitoring a low pressure system that has brought 16 inches of rain in three days to the Shuttle Landing Facility at Kennedy Space Center in Florida.
Forecasters report the system is slowly moving away but it could still bring more rain, possible thunderstorms and winds that could violate the shuttle’s flight rules into the Florida spaceport area. The two Friday landing opportunities are at 10:00 and 11:39 a.m. EDT.
Should mission managers wave off landing the next four opportunities will be Saturday with two at Kennedy and two at Edwards Air Force Base in California. The shuttle has enough supplies to remain in space until Monday.