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  2. Gliese 581d - Wikipedia

    en.wikipedia.org/wiki/Gliese_581d

    The habitable zone of Gliese 581 compared with our Solar System's habitable zone, showing Gliese 581d near the outer edge. As the planet is not known to transit from Earth and atmospheric conditions are not observable with current technology, no atmosphere for the planet has been confirmed to date.

  3. Gliese 581 - Wikipedia

    en.wikipedia.org/wiki/Gliese_581

    Gliese 581g, unofficially known as Zarmina's World, [28] was a candidate exoplanet claimed to orbit Gliese 581, but its existence was ultimately refuted. [45] It was thought to orbit with a period of 36.6 days at a distance of 0.146 AU, placing it within the habitable zone, and to have a minimum mass of 3.1 M 🜨 .

  4. Gliese 581c - Wikipedia

    en.wikipedia.org/wiki/Gliese_581c

    The team released a paper of their findings dated 27 April 2007, published in the July 2007 journal Astronomy & Astrophysics. [1] At the time of discovery, it was reported to be the first potentially Earth-like planet in the habitable zone of its star [5] [6] and the smallest-known exoplanet around a main-sequence star, but on 21 April 2009, another planet orbiting Gliese 581, Gliese 581e ...

  5. Habitable zone - Wikipedia

    en.wikipedia.org/wiki/Habitable_zone

    The habitable zone of Gliese 581 compared with the Solar System's habitable zone. The 2007 discovery of Gliese 581c, the first super-Earth in the circumstellar habitable zone, created significant interest in the system by the scientific community, although the planet was later found to have extreme surface conditions that may resemble Venus. [140]

  6. List of multiplanetary systems - Wikipedia

    en.wikipedia.org/wiki/List_of_multiplanetary_systems

    Gliese 581: Libra: 15 h 19 m 26.83 s: −07° 43′ 20.2″ ... Planet b orbits in the habitable zone, but it and planet c are massive enough to be brown dwarfs. HD ...

  7. Scientists find Earth-like planet that could be home to alien ...

    www.aol.com/news/scientists-earth-planet-could...

    Scientists have found a new Earth-like planet that could support alien life – just 40 light-years away.. The planet is a remarkable discovery in the search for habitable worlds: it is slightly ...

  8. Gliese 581g - Wikipedia

    en.wikipedia.org/wiki/Gliese_581g

    Gliese 581g / ˈ ɡ l iː z ə / was a candidate exoplanet postulated to orbit within the Gliese 581 system, twenty light-years from Earth. [9] It was discovered by the Lick–Carnegie Exoplanet Survey, and was the sixth planet claimed to orbit the star; [10] however, its existence could not be confirmed by the European Southern Observatory (ESO) / High Accuracy Radial Velocity Planet Searcher ...

  9. Planetary habitability - Wikipedia

    en.wikipedia.org/wiki/Planetary_habitability

    Gliese 581 c, a "super-Earth", has been found orbiting in the "habitable zone" (HZ) of a red dwarf and may possess liquid water. However, it is also possible that a greenhouse effect may render it too hot to support life, while its neighbor, Gliese 581 d, may be a more likely candidate for habitability. [27]