Life may have started in sticky, rock-hugging gels rather than inside cells. Researchers suggest these primitive, biofilm-like materials could trap and concentrate molecules, giving early chemistry a ...
We know the main reason that the age of the dinosaurs came to an end: an asteroid impact on the Yucatán Peninsula some 66 million years ago. But how the dinosaurs’ reign began is far less clear—and ...
Scientists now question how life’s building blocks first appeared before LUCA, reshaping our search for life beyond Earth.
Amino acids from asteroid Bennu suggest that some of life’s building blocks formed in icy conditions in the early solar system.