Chinese scientist ignites global UFO debate with paper hinting at antigravity propulsion and inertial mass cancellation.

Scientists found new evidence (or lack thereof) disproving the conspiracy theory that interstellar comet 3I/ATLAS is alien ...

Bob Lazar claims he worked on alien spacecraft at Area 51, but his story remains one of the most divisive in UFO history.

Space exploration has always relied on the continuous improvement of spacecraft propulsion systems. As humanity dreams of reaching new frontiers, like Mars and beyond, one area of focus has been ...