Here’s what you’ll learn when you read this story: Discovering a machine that could somehow produce thrust without releasing propellant would be a game-changer for human space travel. There’s just one ...

A substance called antimatter is at the heart of one of the greatest mysteries of the universe. We know that every particle has an antimatter companion that is virtually identical to itself, but with ...

Gravitational fields as a research area encompass theoretical, computational, and experimental studies of how mass-energy curves spacetime and produces gravitational interactions, primarily within the ...

Antigravity -- Beyond rocket propulsion -- Onward and upward -- An etheric explanation -- The U.S. antigravity squadron -- Gravity beam propulsion -- Project skyvault -- Microwave phase conjugation -- ...