News | 06.21.2012
Proximity of new planets stuns even astronomers
One is a rocky planet 1.5 times the size of Earth. The other is a gaseous world nearly four times Earth’s size. Together they form a spectacular system in which two planets orbit closer to each other than any yet discovered...
Image Credits: (header) European Space Agency & NASA; (left) Michael Marsland (Yale University); (background) NASA, ESA and H.E. Bond (STScI)