Sentences with phrase «sharp outer ring»
Photons returning after one - half orbit would create a sharp outer ring.
http://www.sciencemag.org/ Not exact matches
Along the sharp outer edge of the most massive ring (the B ring), we found an incredible 20,000 - kilometer - long continuous string of spiky shadows betraying the presence of «ring mountains» — waves of particles extending three kilometers above the ring plane.
These distinct, sharp - edged features — somewhat akin to bathtub rings — suggest that each of the comet's lumps has an outer shell of onionlike layers that is at least several hundred meters deep, the researchers report online today in Nature.
In fact, Pan isn't the only moon of Saturn's to have such a ridge — Cassini had previously spotted one on Atlas, the moon closest to the sharp outer edge of the planet's A ring.