Wouldn't his groovy space suit protect him from the harmful space stuff?Surly the water (and the fish inside the bowl) would rapidly boil in the pressureless vacune of space and vaporise, then condense to ice and frozen fish crystals. If you could then collect the fish crystals you could probably sell them to the Soup Dragon, or maybe the feed them to the Iron Chicken!
Either way, Cook$' semi naked Stig spaceman is doomed to a similar fate on stepping out of his space ship anyway!