The US Space Force’s classified spacecraft, the X-37B, has safely returned to Earth after an awe-inspiring 434 days in orbit. This record-breaking mission has led to a whirl of speculation and ...

every major space power keeps its cards close. Strip away the louder claims and several mission sets remain both feasible and strategically valuable: Technology maturation: thermal protection, ...

Messages we send through the airwaves should be encrypted. But some are not. In fact, a lot of clear satellite transmissions ...