If they're exposed to Void energy of any noticeable quantity in the foreseeable future... they'll die.

My energy... it's like a poison, a life force that runs completely contrary to how things on this planet work. That's why I get sick when I eat normal food, or feel uncomfortable when I'm in contact with sunlight. I was engineered to be able to at least endure moderate exposure, but they...

... It's not the first time Solaris pilots have been put through this. And it's proven fatal in the past.