by Claudine Zap Scientists who have studied the Great Pyramid at Giza have questions. And they're hoping that a futuristic robot will help solve some  ancient mysteries . A robotics team from Leeds University will send one of its inventions into the 4,500 year-old Egyptian structure to explore a tunnel that no human has been able to breach. It is blocked by a limestone door that has successfully kept out the curious. Researchers believe it is hiding something.