While out on three spacewalks, Atlantis mission specialists Steve Bowen, Michael Good and Garrett Reisman replaced six solar array batteries on the orbiting platform and installed a backup communications Ku-band antenna and a robot tool tray.

BBC: Atlantis set for 'final' return

Banks, brokers and exchanges continued Tuesday morning to test a new backup plan put together Monday that would shift NYSE operations to its all-electronic platform.

WSJ: Questions Cloud Market Reopening