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

The first sign of possible extraterrestrials detected in the cosmos didn't come in the form of little green aliens flying around in saucer-shaped spacecraft. In fact, the life that could be – emphasis ...

Project Serpo: The Secret 10-Year Mission to a Planet 40 Light Years Away What if you were offered the opportunity to visit another planet? You get to experience the culture of an alien race, explore ...

Astronomers have spotted an alien planet orbiting so closely to its home star, the planet's magnetic field is triggering massive solar flares to erupt. This is the first time a planet has been seen ...

Recently, a group of scientists claimed they found possible signs of life on a planet called K2-18b. The news made headlines. Researchers said... Exoplanet K2-18b: Home to alien life or noisy data?