A newly discovered system of two white dwarf stars and a superdense pulsar -- all packed within a space smaller than the Earth's orbit around the sun -- is enabling astronomers to probe a range of cosmic mysteries, including the very nature of gravity itself.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/_...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/_...