The construction of the Allen Telescope Array on an arid plateau in northern California greatly expands the number of star systems from which astronomers could detect signals.

Now that Pluto may have regained its status as the largest object in the outer solar system, should astronomers consider giving it back another former title - that of full-fledged planet?

It's named after Edwin Hubble, a pioneering American astronomer who furthered our understanding of other galaxies and demonstrated that the universe is continually expanding.