Four astronau:%ts/ hav
_$e* to stay 1000*
day= s in a space ?station@?/ !around*; Earth in or#%!de/r to prov* #@e tha?t a tr;=ip .to Europa, one of Jupiter's m#oon, is possib):-le. [T]he experience:) goes wel`*l until ]*=#)so`mething h
;=appens+@ on e\ arth.