NASA's Orion spacecraft, designed to eventually carry astronauts to Mars, is scheduled to lift off on its first test flight at 7:05 a.m. ET Friday from Cape Canaveral, Florida. The launch window will be open for two hours and 39 minutes. The Orion test launch is the first launch of a spacecraft designed to carry humans outside of orbit since Project Apollo.

You can also tune into The Weather Channel beginning Friday at 6:30 a.m. ET for live coverage of the Orion launch.