David Mathieson "Dave" Walker, was an American naval officer and aviator, fighter pilot, test pilot, and a former NASA astronaut. He flew aboard four Space Shuttle missions in the 1980s and 1990s.
Featuring our global Launch Tracker, interactive Astronaut Database, and Stations Dashboard.
Stay on top of everything leaving Earth; get mission info, countdowns, livestreams, and customized notifications that alert you when a rocket is launching or when a space station is in the skies overhead.