Chester Astronomical Society is one of the world's oldest scientific societies going back at least to 1892. It hosts public lectures by amateurs and professionals alike and arranges visits to sites of technical interest.
Monday, 5 December 2011
Earth's Twin discovered?
Astronomers have confirmed the existence of an Earth-like planet in the "habitable zone" around a star not unlike our own.
The planet, Kepler 22-b, lies about 600 light-years away and
is about 2.4 times the size of Earth, and has a temperature of about