Add Yahoo as a preferred source to see more of our stories on Google. A manhole cover launched into space with a nuclear test is the fastest human-made object. A scientist on Operation Plumbbob told ...

Humanity’s fascination with speed has never ceased, as evidenced by our progress from rudimentary wheels to sophisticated supersonic jets. The latest triumph in this relentless pursuit of speed is the ...

In the pursuit of space exploration, humans have broken records that were previously thought impossible. At the same time, terrible accidents have marred the history of space flight, making later ...