Axios

Liquid water — and potentially habitable conditions — could exist on the surfaces of planets far different from our own, according to a new study.

Why it matters: The new models, if verified with future research, open up the possibility that many different kinds of worlds could be habitable.

The ability to interrogate DNA, proteins and other material in the bloodstream for information about cancers, infectious disease and other conditions is rapidly advancing.

Why it matters: Next-generation blood tests can help detect some diseases early but it's still unclear how much they can improve treatment and ultimately affect whether someone survives a disease.