Live coverage: Three-man crew closes out 173-day space mission

An Orbital ATK Cygnus supply ship packed with 3.7 tons of cargo, supplies and experiments rode an Antares rocket into orbit from Virginia’s Eastern Shore on Sunday, setting course on a two-day pursuit of the International Space Station.

Orbital ATK’s next commercial resupply freighter going to the International Space Station will be named the S.S. John Glenn, paying tribute to the legendary first American to orbit the Earth.

SpaceX’s next Falcon 9 rocket rolled out of its hangar and up the ramp to launch pad 39A Sunday in preparation for liftoff on a two-day trek ferrying more than 6,400 pounds of supplies and experiments to the International Space Station.