Watch the Falcon 9 launch from pad 39A

The United Launch Alliance Atlas 5 rocket, standing 194 feet tall and and weighing 720,000 pounds, generates 860,000 pounds of thrust from its main engine to launch the Orbital ATK Cygnus cargo ship on the OA-7 mission to the International Space Station.

Peering down at the Earth’s atmosphere from a research window aboard the International Space Station, a new science instrument launching Tuesday will compose unprecedented characterizations of the chemical makeup of shooting stars.

SpaceX was already tasked with returning NASA astronauts Butch Wilmore and Suni Williams as part of the Crew-9 mission. That departure was delayed by NASA due to unresolved issues with the fifth Crew Dragon capsule that will launch the Crew-10 flight.