I mean, it depends. If it was a sci-fi-ish scenario where we have functioning life support and so on, I'd jump on the chance in a jiffy if my partner could come with me. On the other hand, space doesn't care even slightly about keeping me alive, so I'd likely quickly end up dead or crippled from too much or too little heat, pressure, radiation, minute chemical variances in atmosphere or any other things we take for granted planetside.