Follow the Atlas 5 rocket’s ascent into orbit from Cape Canaveral’s Complex 41 launch pad with the Orbital ATK Cygnus resupply ship for the International Space Station. Launch is scheduled for Tuesday at 11:05 p.m. EDT (0305 GMT).

Mars rovers go through seven minutes of terror when they plunge into the Martian atmosphere at hypersonic speed. NASA’s OSIRIS-REx spacecraft will take a more glacial approach to its asteroid target Tuesday, and the event will be more akin to four-and-a-half hours of mild anxiety for ground teams, according to the mission’s operations manager.

Firefly Aerospace’s Blue Ghost lander will deploy first and is designated as the primary payload and ispace’s Resilience lander will follow about 30 minutes after. Liftoff from pad 39A happened at 1:11 a.m. EST (0611 UTC).