Virgil Ivan "Gus" Grissom (April 3, 1926 – January 27, 1967) was an American engineer, pilot in the United States Air Force, and member of the Mercury Seven selected by National Aeronautics and Space Administration's (NASA) as Project Mercury astronauts to be the first Americans in outer space. He was a Project Gemini and an Apollo program astronaut. As a member of the NASA Astronaut Corps, Grissom was the second American to fly in space in 1961. He was also the second American to fly in space. Selected as one of the Mercury Seven astronauts, Grissom was the pilot of Mercury-Redstone 4 (Liberty Bell 7), the second American suborbital flight, on July 21, 1961. At the end of the flight, the capsule's hatch blew off prematurely after it landed in the Atlantic Ocean. Grissom was picked up by recovery helicopters, but the blown hatch caused the craft to fill with water and sink. His next flight was in the Project Gemini program as command pilot for Gemini 3 (Molly Brown), which was a successful three-orbit mission on March 23, 1965. Grissom, commander of AS-204 (Apollo 1), died along with his fellow astronauts Ed White and Roger B. Chaffee on January 27, 1967, during a pre-launch test for the Apollo 1 mission at Cape Kennedy, Florida.