From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

It's one of life's biggest questions - are we alone in the universe? Now, one of Britain's top space scientists has declared ...

Earth-type life may be more rare and precious than is commonly thought, according to a UK study that hints at a cosmic lack of phosphorus. The element is vital to energy storage and transfer in cells, ...

Humanity is on the way to confirming the existence of non-human entities and making contact with aliens within the next 50 ...

Alien life may one day be found not from radio signals beamed across the cosmos but from an all-too-familiar side-effect of civilisation: pollution. It's the Earth's atmosphere that he's usually ...

An alien planet has been discovered that may be "teeming with life" as scientists reveal the exact date we will know whether extraterrestrials exist could be "within one to two years". Lead researcher ...

Astronomers have made what could be a groundbreaking discovery in the search for extraterrestrial life, identifying encouraging signs of existence on a remote planet 124 light years away, a distance ...

Scientists believe they have discovered the strongest signs yet of alien life on a distant ocean-covered planet far beyond our solar system. The possible landmark discovery was made by scientists ...

Despite what UFO enthusiasts might claim, virtually every scientist agrees that humanity is yet to receive a message let alone a visitor from beyond our planet. But in the vast scale of the universe – ...

Comet 3I/ATLAS, an interstellar visitor, reaches its closest approach to Earth on Dec 19 at about 167 million miles - visible ...