A new study dates emergence of the virus that causes COVID-19 to as early as October 2019. Simulations also suggest that in most cases zoonotic viruses die out naturally before causing a pandemic.
Tools and methods developed by Daniel Apai's research group at UArizona will help study the atmosphere of exoplanets as part of NASA's Pandora mission concept.
Humans' response to climate variability is not all doom and gloom. Past societies have found ways to thrive and innovate under climatic stresses, researchers say.
