Liftoff is at 1:35 p.m. EDT (1735 GMT) Designated Space Based Infrared System Geosynchronous Earth Orbit Flight 5 (SBIRS Geo-5), the mission marks ULA's first launch so far this year. However, the company has a busy summer planned, including the launch of Boeing's Starliner crew capsule to the International Space Station. That mission, called OFT-2, will be the spacecraft's second uncrewed orbital flight test. The first, which occurred in Dec. 2019, failed to reach the space station due to a software issue. Following a successful second flight test, Boeing will launch its first crew of astronauts later this year. Weather...