In a potential landmark discovery, scientists using the James Webb Space Telescope have obtained what they call the strongest signs yet of possible life beyond our solar system, detecting in an alien planet's atmosphere the chemical fingerprints of gases that on Earth are produced only by biological processes.

Mars could have “once been home to alien lifeforms” as NASA makes a bombshell Red Planet discovery - and experts have even said “the planet was habitable”. The NASA's Curiosity rover has sniffed out signs of a carbon cycle beneath the dusty surface of the Red Planet,

The discovery was made on a massive exoplanet known as K2-18b that for years has captivated scientists searching for life outside of Earth.