SpaceX launches new crew to replace stranded NASA astronauts at ISS.

• Replacements for NASA’s two astronauts, Butch Wilmore and Sunita Williams, have launched to the International Space Station.
• The new crew will be escorted back by astronauts who flew up on a rescue mission on SpaceX last September.
• The new crew includes military pilots Anne McClain and Nichole Ayers, and former airline pilots Takuya Onishi and Kirill Peskov.
• Wilmore and Williams were expected to be gone soon after their launch from Cape Canaveral on June 5.
• Their trip was marred by helium leaks and thruster failures, leading to months of investigation by NASA and Boeing.