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Monday, October 3, 2022
Home Light and color would look different on a planet orbiting a tiny red star, like this artist’s impression of Proxima b. The Earth-sized planet in the habitable zone is the nearest exoplanet to our sun. (ESO/M. Kornmesser) Light and color would look different on a planet orbiting a tiny red star, like this artist's impression of Proxima b. The Earth-sized planet in the habitable zone is the nearest exoplanet to our sun. (ESO/M. Kornmesser)

Light and color would look different on a planet orbiting a tiny red star, like this artist’s impression of Proxima b. The Earth-sized planet in the habitable zone is the nearest exoplanet to our sun. (ESO/M. Kornmesser)

Light and color would look different on a planet orbiting a tiny red star, like this artist's impression of Proxima b. The Earth-sized planet in the habitable zone is the nearest exoplanet to our sun. (ESO/M. Kornmesser)

Light and color would look different on a planet orbiting a tiny red star, like this artist’s impression of Proxima b. The Earth-sized planet in the habitable zone is the nearest exoplanet to our sun. (ESO/M. Kornmesser)

The gas giant Kepler-16b, nicknamed ‘Tatooine,’ orbits a pair of stars. One star is a small red dwarf star, the other is a larger K dwarf. (NASA/JPL-Caltech)
Enceladus is an icy world much like Hoth, except that it may have an ocean under its frozen crust. Astronomers believe this moon of Saturn may be a good candidate for having extraterrestrial life beneath its surface. (NASA)