The team released a paper of their findings dated 27 April 2007, published in the July 2007 journal Astronomy & Astrophysics. At the time of discovery, it was reported to be the first potentially Earth-like planet in the

The study of Gliese 581c by the von Bloh et al. team has been quoted as concluding "The super-Earth Gl 581c is clearly outside the habitable zone, since it is too close to the star." The study by Selsis et al. claims even "a planet in the habitable zone is not necessarily habitable"

• Circumstellar habitable zone (Goldilocks phenomenon)
• CoRoT-7b
• Interstellar travel
• Planetary habitability

• Gliese 581 - The "Red Dwarf" and implications for its "earthlike" planet Gliese 581c

Mass
The existence of Gliese 581c and its mass have been measured by the radial velocity method of detecting extrasolar planets. The mass of a planet is

A Message from Earth (AMFE) is a high-powered digital radio signal that was sent on 9 October 2008 towards Gliese 581c. The signal is a digital time capsule containing 501 messages that were selected through a competition on the social networking site

News media reports
• Dennis Overbye (12 June 2007). "A Planet Is Too Hot for Life, but Another May Be Just Right"