In a potential step toward sending small spacecraft to the stars, researchers have developed an ultra-thin, ultra-reflective ...

This new propulsion system could rewrite the rules of spaceflight—not to mention completely defy conventional physics.

HUNTSVILLE, Ala. — While the U.S. Army has exquisite firepower with its expensive long-range precision fire systems, it also ...

Type One Energy has published the world’s first detailed and self-consistent physics basis for a practical fusion pilot power ...