Most space missions rely on chemical rockets for propulsion. Rockets must carry fuel, which increases spacecraft mass and limits their speed and travel distance. For decades, researchers have explored ...

A computer expert pulled off the 'biggest military computer hack of all time,' breaching NASA's system to find what he said ...

There is a silence in the night sky that has bothered me for as long as I can remember. ” That observation, attributed to ...

A high-ranking retired US Air Force officer, once in charge of laboratories connected to UFO research, is reported missing in New Mexico.

As engineers work to fix issues with the Artemis 2 mission's Space Launch System (SLS) rocket, NASA officials are reexamining what flights will follow and are shaking up plans for ...

The Mystery Wire is releasing more documents obtained from the Cold War era USSR about the country's investigations into ...

Hypersonic vehicles travel at least five times faster than the speed of sound. They also tend to be highly maneuverable, ...

As RadarOnline.com has reported, the stunning revelations are eerily similar to reports by a slew of American pilots who have had unnerving encounters with UFOs that defy the laws of physics – and ...

WASHINGTON, Feb 19 (Reuters) - President Donald Trump said on Thursday he would direct federal agencies to begin releasing government files related to aliens and unidentified flying objects, pointing ...

Could humanity ever build a home around another star? This episode examines the challenges of surviving on a planet orbiting a volatile red dwarf, where radiation and stellar flares pose constant ...

During the xAI all-hands meeting on Wednesday, the billionaire shared his vision of having moon-based factories and mass drivers. "We're actually gonna have a Mass Driver on the Moon," Musk said. A ...

For nearly five decades, Steven Spielberg has helped define what alien stories mean to movie audiences. Sometimes they arrive as cosmic miracles. Sometimes as existential threats. Sometimes as ...