posted on Jul, 6 2004 @ 05:56 PM
Tau Ceti: The Going Gets Tough for Life
Tau Ceti, only 12 light years away, is the nearest sun-like star and is easily visible without a telescope.
It is the first star to be found to have a disk of dust and comets around it similar in size and shape to the disk of comets and asteroids that orbits
But the similarity ends there.
Tau Ceti has more than ten times the number of comets and asteroids that there are in our Solar System.
It's unlikely planets orbit in Tau Ceti, but if there are, it is likely that they will experience constant bombardment from asteroids of the kind
that is believed to have wiped out the dinosaurs.
It is likely that with so many large impacts life would not have the opportunity to evolve.
source from SpaceRef
Image of the disc of dust particles around the star Tau Ceti, taken with the submillimetre-wavelength camera SCUBA.
moral if this story: scientists are going to have to rethink where they look for civilizations outside our Solar System.