Watch conditions at Kennedy Space Center during Tropical Storm Isaias

SpaceX’s Falcon Heavy rocket stood atop historic launch pad 39A on Monday, one day before 27 kerosene-fueled rocket engines will dispatch the towering rocket into space with nearly 5 million pounds of thrust.

Veteran astronauts Soichi Noguchi and Shannon Walker have been assigned to fly to the International Space Station on SpaceX’s second piloted Crew Dragon mission later this year, joining commander Mike Hopkins and astronaut Victor Glover on a planned six-month expedition in orbit.

SpaceX launched a Falcon 9 rocket from Florida’s Space Coast Wednesday evening with the SES 11/EchoStar 105 communications satellite, a video relay and data distribution platform jointly developed by SES and EchoStar.