Densest known rocky planet: Astronomers unveil portrait of 'super-exotic super-Earth'

(PhysOrg.com) -- An international team of astronomers today revealed details of a "super-exotic" exoplanet that would make the planet Pandora in the movie Avatar pale in comparison.

New conditions for life on other planets: tidal effects change 'habitable zone' concept

Tides can render the so-called "habitable zone" around low-mass stars uninhabitable, according to new research. Until now, the two main drivers thought to determine a planet