Why are scientists taking unidentified aerial phenomena seriously? Because every answer matters for science, national security, and the people whose lives are changed by these experiences.

Discover this week's must-see night sky events, moon phases, and stunning astrophotos. Sign up for our skywatching newsletter ...

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should ...

In the farthest reaches of the planetary plane, at an average distance from the Sun four times that of Saturn, lurks Pluto – ...

Some of these approaches may show promise, but new research indicates much of today’s AI is even more easily duped by false ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals . Unexplained gases on other planets. Things mistaken for UFOs ...

If the truth is out there, the White House has a new scientific advisory group working on finding it. Called the UAP Science Advisory Council, the group’s members aim to advise the highest echelons of ...

Something is absorbing light on the surfaces of Pluto and Saturn’s moon Titan, and figuring out what it is could be crucial to understanding Titan’s complex chemistry ...

In other words, the movement of atoms became the clock, providing a sense of time based on the action of entropy, rather than the ticking hands of a conventional timepiece. "In th ...

Harvard astrophysicist Avi Loeb has floated the provocative idea that humans might themselves be alien‑made 'autonomous probes,' built through advanced synthetic biology rather than evolving entirely ...

This article is part of “The Young American Scientists,” which includes stories of 28 extraordinary scientists poised to change the world, as well as a deep look at the past, present and future of ...