A UFO encounter at a North Dakota nuclear site prompted an Air Force captain to defy an order of silence in his search for ...

SpaceX launched a commercial satellite from Florida on Tuesday evening. The space company had warned that one or more sonic ...

Space Team live updates from this evening's SpaceX Maxar 3 rocket launch -- with sonic booms -- from NASA's Kennedy Space Center.

Trump's push follows in the footsteps of Reagan's Strategic Defense Initiative, a scrapped program popularly called "Star ...