Biologists are quietly rewriting what it means to be alive, and the human body has become one of their strangest frontiers.

It’s a paradox: Life needs water to survive, but a world full of water can’t generate the biomolecules that would have been essential for early life. Or so researchers thought. However, when the first ...

Mark Lorch does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. Why do astronomers look for signs of life on ...