That means if aliens were to exist, and they were located some 66 million light-years from Earth, they’d theoretically still ...

Anyone familiar with the search for alien life will have heard of the "Goldilocks Zone" around a star. This is defined as the orbital band where the temperature is just right for liquid water to pool ...

How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

Scientists might have just found Earth's icy, distant cousin a few hundred million light-years away. HD 137010 b is one of ...

Questions about what the federal government may know about extraterrestrial life in the cosmos — or possibly even here on ...

On Thursday the U.S. president ordered the release of federal files related to UFOs and aliens, although no evidence of extraterrestrials visiting Earth is known to exist ...

For 25 years, the program has looked at how life began on Earth and how those conditions can translate to other planets in the galaxy.