The Difference between an Orange vs White Spacesuit Difference between Orange Suit and White Suit ? mm Did you ever wonder why astronauts sometimes wear orange suits and sometimes white? The orange-coloured Advanced Crew Escape Suit (ACES) is the space shuttle ascent and entry suit. This particular colour is highly visible against any kind of landscape, especially in the sea. The white-coloured ones are the bulkier Extravehicular Activity (EVA) suits. That is because white reflects the strong heat of the sun and is easily visible against the black expanse of space. - iFunny