NASA flight director discusses curtailed spacewalk

The sixth commercial cargo delivery by Orbital ATK’s Cygnus spacecraft, and the first using an Antares rocket since a launch failure in 2014, will carry more than 5,000 pounds of equipment to the International Space Station.

Expanding a single instant in time to 30 minutes, the upcoming Atlas 5 rockets with Cygnus cargo-delivery freighters bound for the International Space Station will have an unprecedented opportunity available to launch each day.

A refurbished SpaceX Crew Dragon spaceship linked up with the International Space Station early Saturday more than 260 miles above Earth, delivering four veteran astronauts to the orbiting research complex and temporarily raising the lab’s crew complement to 11.