Super-Earths are bigger, more common and more habitable than Earth itself
Astronomers are discovering more of the billions they think are out there
An ancient super-Earth offers an unexpected clue that life in our galaxy could be older than scientists thought
How little do we still know...
Could there be life near these two new super-Earths?
Astronomers are able to spot the exoplanets using a technique called the doppler wobble