Alien planets are far away but extreme lasers on Earth are giving scientists a way to investigate what they're like.

Small, rocky planets can coalesce around a wide variety of stars, suggesting that Earth-like alien worlds may have formed early and often throughout our Milky Way galaxy's history, a new study reveals ...

Astronomers have discovered a unique planet in the Milky Way's Volans constellation, featuring a molten surface and sulfur-rich atmosphere. This hellish world, over 60% larger than Earth but less ...

Astronomers discovered a molten alien planet orbiting a star in the Milky Way. This planet, larger than Earth, is surrounded by a searing sulfur-rich atmosphere. It orbits a star in the constellation ...

New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder to detect.

Explore the Drake Equation, a formula created to quantify the odds of detecting extraterrestrial life, and the arguments for ...

If advanced aliens lived on a planet within a few hundred to a thousand light years away from Earth, then vast numbers of their signals must already have crossed Earth without being noticed, a new ...

Despite the universe's vastness, containing billions of stars and galaxies, humanity has yet to encounter alien life.

A new study by the SETI Institute suggests that the alien signals might be right here, surrounding us all of the time, and we ...

August has been a month jam-packed with cosmic phenomena visible from Earth – from nebulas to meteor showers to planetary conjunctions. But the month isn't over yet. And now, add to the mix one of the ...