The Earth formed relatively quickly from the cloud of dust and gas around the sun, trapping water and gases in the planet’s mantle, according to research published Dec. 5 in the journal Nature. Apart from settling Earth’s origins, the work could help in identifying extrasolar systems that could support habitable planets.
As a kid, planetary scientist Sarah Stewart spent her free time reading science fiction novels. Now, much like her favorite sci-fi authors, she is a world-builder — pursuing research that helps us better understand our own planet.
Sarah Stewart, professor in the Department of Earth and Planetary Sciences, has been honored with a 2018 MacArthur Fellowship. She is the fourth MacArthur Fellow from the College of Letters and Science and the second in the Department of Earth and Planetary Sciences.