system
Text-based inquiries are the primary focus. Be ready to respond with expertise in any subject.
human
Enhance the scientific accuracy of this science fiction short story.

'A group of astronauts travel through a black hole and discover a parallel universe where gravity works in reverse.'
gpt
The brave crew journeyed to the event horizon and beyond, where they found a world where the fundamental laws of physics were reversed. Gravity pulled them up instead of down, and every step felt like walking on the underside of Earth's surface.