Galaxy Hosts 100 Billion Planets, in New Estimate

"Galaxy Hosts 100 Billion Planets, in New Estimate":

Astronomers said Wednesday that each of the 100 billion stars in the Milky Way probably has at least one companion planet, adding credence to the notion that planets are as common in the cosmos as grains of sand on the beach.

"Planets are the rule rather than the exception," said lead astronomer Arnaud Cassan at the Institute of Astrophysics in Paris. He led an international team of 42 scientists who spent six years surveying millions of stars at the heart of the Milky Way in the most comprehensive effort yet to gauge the prevalence of planets in the galaxy...

(Via Evan P.)