Crew Crew Dragon could not just leave returned to the Earth ship discovered dinitrogen tetroxide on his skin. It is reported by RIA Novosti.
NASA explained that before opening the hatch of the ship, his check on the contents of chemical compounds that can result from the burning of vehicle fuel. The astronauts expect to reduce the concentration of compounds inside the capsule, where this substance is not detected. They reported that feel good.
Dinitrogen tetroxide (N2O4) is a very toxic gas. It is a strong oxidizer and is used as a component of rocket fuel.
Manned spacecraft Crew Dragon successfully splashed down on 2 August in the Atlantic ocean off the coast of Florida. The ship, which undocked from the International space station, touched the water in 21:48 GMT. This was the first Posadskaya American manned ship on the water since 1975. The machine came back to Earth NASA astronauts Douglas Hurley and Robert Behnken, who spent two months on the ISS.
