Planet Earth has been around for the past 4.5 billion years or so: about the last third of the Universe's history. Through a combination of geology and paleontology, we can trace the existence of life ...

Recent discoveries of planets similar to Earth in size and proximity to the planets’ respective suns have sparked scientific and public excitement about the possibility of also finding Earth-like life ...

Does the existence of life on Earth tell us anything about the probability of abiogenesis — the origin of life from inorganic substances — arising elsewhere? That’s a question that has confounded ...

Biosignature probability maps from CNN models and statistical ecology data. The colors in a) indicate the probability of biosignature detection. In b) a visible image of a gypsum dome geologic feature ...

"The existence of an ocean of this size means a higher potential for life." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, ...

Human beings have long looked to the stars and hoped that alien life might look back at us. Yet the truth is that the first extraterrestrial life we discover is far more likely to be microbial — a ...