Photos: Tuesday’s Atlas 5 rollout

India’s Polar Satellite Launch Vehicle blasted off Thursday with the seventh and final spacecraft for a regional navigation network to provide position data to users across the subcontinent independent of foreign satellite systems.

With the SpaceX scrub earlier this week and the time needed to convert the Eastern Range over to the Delta 4, liftoff of that rocket carrying an internationally-purchased military communications satellite for the Air Force has been bumped to Saturday evening.

Two astronauts floated outside the International Space Station Sunday for the first in a series of spacewalks to upgrade the lab’s aging solar power system, assembling a support fixture that eventually will hold a new solar blanket.