fredag 21 Dec 2012, 11:16

Star known as Tau Ceti, in the constellation of Cetus and some 12 light years from our Sun, would appear to have 5 planets orbiting. Whilst all have a larger mass than Earth, one lies in the star's 'Goldilocks zone', the orbital region that is neither too hot nor too cold to allow liquid surface water and, potentially, life.
This brings the number of planets discovered around other stars up to nearly 900 as at December 2012. None are known, as yet, too be habitable by humans, but the search goes on and sooner or later a match, or near match, for Earth is likely to be discovered.
There is other life out there, for beyond the known universe of around 13 billion years duration lies the 'unknown' and 'unseeable' universe. All is still expanding, even though entropy rules. One just needs to hang around for a few million years or so, to see what happens. :)