If you've ever dreamed of exploring the vast openness of space, you're probably sad that we've yet to even send our first person to a neighboring planet. Thankfully, there are other ways of exploring ...

The recent visit to our solar system by the interstellar object 3I/ATLAS has sparked speculation about whether it’s another ...

Aliens—hypothetical beings from outer space—fall into roughly three categories. They could be far-away microbes or other creatures that don’t use technology humans can detect; they could be far-away ...

In the upcoming sci-fi drama "Arrival," several mysterious spacecraft touch down around the planet, and humanity is faced with how to approach—and eventually communicate—with these extraterrestrial ...