Video: Change of command aboard International Space Station

Two astronauts floated outside the International Space Station early Tuesday and replaced one of the grapple fixtures on the end of the lab’s robot arm, the first of two excursions over the next week to complete a complex overhaul that began with a pair of spacewalks last October.

NASA commentator Dan Huot has everything you need to know about Russia’s Soyuz space capsule and provides a tour inside the cramped spacecraft, which, since the end of the shuttle program, has been the only way to ferry cosmonauts and astronauts to and from the International Space Station.

A SpaceX Dragon capsule is wrapping up a month-long mission Saturday. The spaceship departed the International Space Station at 9:23 a.m. EDT (1323 GMT), and splashed down in the Pacific Ocean at approximately 3 p.m. EDT (1900 GMT) with nearly two tons of experiment specimens and hardware, including a habitat of mice and Robonaut 2, an experimental humanoid robot in need of repairs.