Modeling Earth’s atmosphere and magnetic field from 41,000 years ago suggests how Homo sapiens’ sun-fighting strategy helped sustain them as a species.
Although a bracket fungus proved to be the least palatable, it is not poisonous. This conclusion could make scientists rethink the relationship between taste and toxicity.
Learn why finding no obvious biosignatures on 40 to 80 exoplanets doesn’t mean that life doesn’t exist outside Earth. It just provides a way to narrow the search.