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1 October 2019
A new study finds land planets, which have equal to or less than 10 percent of the volume of Earth’s water, can remain habitable at a closer distance to their host star if most of their water is at the planet’s poles. This means the habitable zone for these types of planets may be different than previously assumed.
18 December 2014
Michael Wong wants to understand how life could evolve on other worlds. A graduate student in planetary sciences at the California Institute of Technology, he usually focuses on planetary atmospheres. But recently, his quest took Wong to a strange, hostile setting: the bottom of an acidic ocean on Earth, 4 billion years ago.
16 December 2014
Scientists are working to simulate and catalogue the properties of Earth-like planets to create an “exoplanet zoo,”—a collection of worlds with similar compositions but different levels of habitability. That’s the goal of a new modeling approach presented by Cayman Unterborn during a poster session Monday morning at the American Geophysical Union’s Fall Meeting in San Francisco.