Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

Detective astronomers have discovered at least one unseen alien planet, and possibly another, around a distant star by observing the odd behavior of a planet already known to orbit the same star. The ...

Artist's illustration of the five tightly packed exoplanets in the Kepler-80 system, which likes 1,100 light-years from Earth. If you want to see a planet align with another in our solar system, you ...

The Search for Extraterrestrial Intelligence (SETI) focuses on finding technosignatures—potential signs of alien technology. If we look carefully, we might have a chance at detecting their ...

Alien life on a new planet “may not have DNA like humans but might walk on two legs”, experts have revealed. It follows the discovery of an extraterrestrial world around 120 light years away from ...

Humans should look to planetary alignments outside of the solar system when searching for signatures of extraterrestrial communications, scientists say. The nascent search for radio transmissions from ...

Life may not get blasted off any of the known "super-Earth" worlds as readily as it can from our planet, scientists find. The discovery suggests that any intelligent aliens that develop on such ...

Planets orbiting close to red dwarf stars risk getting hit by violent flares.Credit: NASA, ESA and D. Player (STScI) (Inside Science) — Shifting, slipping and colliding tectonic plates played an ...

NEW YORK, July 16: Astronomers have uncovered a previously undetected alien planet, Kepler-139f, by analyzing the orbits of known planets within the Kepler-139 star system. This hidden exoplanet is ...

You’ve traveled thousands of light-years through interstellar star systems. And now you’re stranded on a planet you know nothing about. As long as you’ve got oxygen, water and food aboard your ...