Day: December 2, 2012

Missing Jupiters – Do They Imply Massive Comet Belts Around Other Stars?Missing Jupiters – Do They Imply Massive Comet Belts Around Other Stars?

<p>Using ESA’s Herschel space observatory, astronomers have discovered vast comet belts surrounding two nearby planetary systems known to host only Earth-to-Neptune-mass worlds. The comet reservoirs could have delivered life-giving oceans