Live coverage of Delta 4 countdown and launch

NASA’s robotic Ingenuity helicopter is poised to make the first attempt at a powered flight in the atmosphere of Mars. Watch live at 6:15 a.m. EDT (1015 GMT) Monday as NASA officials receive signals confirming the outcome of the automated flight attempt.

Crew members aboard the International Space Station are investigating a tiny pressure leak on the Russian side of the orbiting outpost. The crew traced the leak to a small hole on the Soyuz MS-09 spacecraft, which ferried a three-person crew to the station in June. Mission control is examining options to repair the damage, and NASA says the crew is not in danger.

Engineers from SpaceX, Boeing and Inmarsat spent the last few weeks preparing a Falcon 9 rocket and the Inmarsat 5 F4 communications satellite for liftoff from NASA’s Kennedy Space Center in Florida.