The discovery of extraterrestrial material inside an ancient crater on Earth is raising new questions about how life may have first emerged on our planet. South Korean researchers studying the ...

Stromatolites, formed by microbes, represent some of the oldest known evidence of life on Earth (Image: Getty) Scientists have uncovered extraterrestrial material inside an Earth crater that they ...

Donald Trump's declassified UFO files and the documentary Sleeping Dog reignite the debate on extraterrestrial life, yet officials maintain no evidence confirms alien existence.