Normal, everyday clothes.
They wear space suits
Space suits
astronauts wear special suits which protect them from the heat
astronauts wear special suits which protect them from the heat
so they can breathe
They wear space suits
This depends upon where the astronaut is. Inside the International Space Station, astronauts usually wear light, informal clothing. If the astronaut exits the station to do a space walk or other such mission, the astronaut will wear an air tight space suit, in order to be able to continue breathing.
The astronauts wear tethers whenever they exit the space station so that they remain attached to the station. Otherwise, without sufficient gravity to keep them close by, they could easily drift away into space.
space suits
Space suits
These are the suits that the astronauts wear when they travel to outer space.
No the astronauts wear their space suits when they are launched, but they remove them later.
A space suit.
astronauts wear special suits which protect them from the heat
astronauts wear special suits which protect them from the heat
you are thinking of Solar radiation. or radiation from the sun in simple terms.
As astronauts reach in space, they are given the command that they can remove their heavy suits and change their clothes. They wear the same clothes as they wear on earth, once they reach perfectly in space.