28 abril 2015
Astronomers discovered a planetary system orbiting a nearby star that is only 54 light-years away. All three planets orbit their star at a distance closer than Mercury orbits the sun, completing their orbits in just five, 15, and 24 days.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_kdNSlnNn4Y/150428171742.htm
