Obliquity and eccentricity determine exoplanet habitability

Finding habitable Earth-like planets may be even more challenging than previously thought, suggests a recent Astronomical Journal study looking at how the planetary obliquity, or tilt relative to an orbital axis, and orbital eccentricity affect the habitability of planets orbiting G-dwarf stars — which are similar to the sun.

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Rachel Crowell

Crowell, a former AAAS Mass Media Fellow who holds a bachelor's in mathematics and statistics, is a freelance math and science writer based in the Midwest. Follow Crowell on Twitter at @writesRCrowell.

Wednesday, September 5, 2018 - 06:00

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