For generations, the question of whether life exists beyond Earth has captivated humanity. On Mars, faint traces in ancient ...

Living cells pay a hidden energy price not just to run chemical reactions, but to keep them on track and block all the ...

The author is a science and technology writer. The recent announcement that scientists have found possible signs of life in the clouds of Venus has resurrected the age-old question: Are we alone? It ...

If you came to our Solar System right after it formed, you would have seen a completely foreign-looking sight. Our Sun would have been about the same mass it is today, but only about 80% as luminous, ...

Metabolic processes that underpin life on Earth have arisen spontaneously outside of cells. The serendipitous finding that metabolism – the cascade of reactions in all cells that provides them with ...

Although biology is the study of life, even biologists don't agree on what 'life' actually is. While scientists have proposed hundreds of ways to define it, none have been widely accepted. And for the ...