Newly discovered 'super-Earth' offers prime target in search for alien life

The discovery of a possible "super-Earth" less than 20 light-years from our own planet is offering scientists new hope in the hunt for other worlds that could harbor life, according to an international team including researchers from Penn State. They dubbed the exoplanet, named GJ 251 c, a "super-Earth" as data suggest it is almost four times as massive as Earth, and likely to be a rocky planet.