The observations were carried out by the Breakthrough Listen program as the object neared its closest approach to Earth on ...

The Executive Order removes the requirement for the United States government to make basic space situational awareness data and space traffic management services available “free of direct user fees,” ...

"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

When ET phones home, it could be his last call. Contrary to sci-fi movie depictions, our first contact might not be with a super advanced alien civilization at the height of power. Rather, Ivy League ...

Interstellar comet 3I/ATLAS has become famous than most celebrities as it makes its way through our solar system. Although astronomers have been studying this rare visitor since its discovery in July, ...

Experts are sounding the alarm about escalating space debris concerns and the urgent plan designed to prevent catastrophic disruptions to worldwide communications. Space debris threatens satellite ...

The US Space Force awarded multiple small contracts to develop prototypes for space-based interceptors, looking for progress with a technology that has yet to be proven but forms a crucial part of ...

The truth is out there — and late President George H.W. Bush apparently knew it — telling a federal official that an alien made contact with humans at a secretive New Mexico air base in 1964, ...