Sthephen Hawking said, some weeks ago, that by 2050 Earth people will be living on other planets, so I found quite enthusiastic to have an idea of the last electible planets and their stars which could give us some clues on our exploring chances in a near future.
Artistic representations of all the planets around other stars (exoplanets) with any potential to support surface life as we know it. All of them are larger than Earth and we are less certain about their composition and habitability, but they represent the best objects of interest for future observations. They are ranked from best to worst with the Earth Similarity Index (ESI), a measure of Earth-likeness, but none yet seems to be a true Earth-like planet. This selection of worlds is also subject to change as new interpretations or astronomical observations are made. Earth, Mars, Jupiter, and Uranus are shown for scale in the right side.
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| Credits: (CC) Planetary Habitability Laboratory @ UPR Arecibo, 2014 |
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