Have we really found Earth 2.0?

Have we really found Earth 2.0?

Last month Nasa announced, in what seems like a roughly annual event, the discovery of “Earth 2.0″. Described as a “Bigger, Older Cousin to Earth”, Kepler 452b is the first small planet (defined here as less than twice the radius of the Earth) to be in a roughly one year orbit around a Sun-like star.

But is it otherwise that similar to the Earth? Is it potentially habitable? To try and answer that, let’s look at the discovery paper.

Science at the edge of the Solar System

Science at the edge of the Solar System

Pluto: the last and final of the ‘original’ 9 planets of the Solar System to be visited by a probe. NASA’s New Horizons arrived at this tiny world at the edge of the Solar System earlier this week bringing into sharp focus for the first time. Science was a plentiful from every new image that was released, so here’s a quick recap for you, just in case you blinked and missed it…