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  2. List of potentially habitable exoplanets - Wikipedia

    en.wikipedia.org/wiki/List_of_potentially...

    Kepler-1638b was thought to be a possibly habitable planet with a radius smaller than 2 R 🜨 after the validation. However based on the later measurement of host star parallax by Gaia, the radius of the planet was revised upward to 3.226 +0.201 −0.315 R 🜨, resulting in it being a ice giant like Neptune with poor prospect for habitability ...

  3. Kepler-452b - Wikipedia

    en.wikipedia.org/wiki/Kepler-452b

    Kepler-452b (sometimes quoted to be an Earth 2.0 or Earth's Cousin [4] [5] based on its characteristics; also known by its Kepler object of interest designation KOI-7016.01) is a candidate [6] [7] super-Earth exoplanet orbiting within the inner edge of the habitable zone of the sun-like star Kepler-452 and is the only planet in the system discovered by the Kepler space telescope.

  4. Planetary habitability - Wikipedia

    en.wikipedia.org/wiki/Planetary_habitability

    A 2020 study found that about half of Sun-like stars could host rocky, potentially habitable planets. Specifically, they estimated that, on average, the nearest habitable zone planet around G and K-type stars is about 6 parsecs away, and there are about 4 rocky planets around G and K-type stars within 10 parsecs (32.6 light years) of the Sun. [33]

  5. A potentially habitable Earth-size planet was discovered just ...

    www.aol.com/news/potentially-habitable-earth...

    A potentially habitable exoplanet that is roughly similar in size to Earth has been found in a system located 40 light-years away, according to a new study. The planet is about the size of Venus ...

  6. The tiny planet-not-planet that could: Pluto was discovered ...

    www.aol.com/short-uneventful-life-pluto-planet...

    The planet's existence had first been suspected more than 30 years before by American astronomer Percival Lowell, whose study of the movements of the the orbits of planets, meteor showers and ...

  7. List of nearest terrestrial exoplanet candidates - Wikipedia

    en.wikipedia.org/wiki/List_of_nearest...

    Located 31 light years from Earth, this planet is 1.26 times the mass of Earth and has a radius of 1.08 times the Earth's. Though Wolf 1069 b is likely tidally locked, its daylight side may still be habitable. It has similar characteristics to Proxima Centauri b and is one of the nearest discovered potentially habitable exoplanets to Earth.

  8. Planetary habitability in the Solar System - Wikipedia

    en.wikipedia.org/wiki/Planetary_habitability_in...

    Planetary habitability in the Solar System is the study that searches the possible existence of past or present extraterrestrial life in those celestial bodies. As exoplanets are too far away and can only be studied by indirect means, the celestial bodies in the Solar System allow for a much more detailed study: direct telescope observation, space probes, rovers and even human spaceflight.

  9. Hycean planet - Wikipedia

    en.wikipedia.org/wiki/Hycean_planet

    Cold hycean planets may exist even in the absence of stars, e.g. rogue planets. [13] Although the presence of water may help them be habitable planets, their habitability may be limited by a possible runaway greenhouse effect. Hydrogen reacts differently to starlight's wavelengths than do heavier gases like nitrogen and oxygen.