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'Earhart' Propeller in Saturn's A Ring The propeller informally named "Earhart" is seen in this view from NASA's Cassini spacecraft at much higher resolution than ever before. This view, obtained on March 22, 2017, is the second time Cassini has deliberately targeted an individual propeller for close-up viewing during its ring-grazing orbits, after its images of Santos-Dumont (PIA21433) a month earlier. The biggest known propeller, informally named "Bleriot," is slated for the third and final propeller close-up in April 2017. Propellers are disturbances in the ring caused by a central moonlet. The moonlet itself would be a few pixels wide in this view, but it is difficult to distinguish from (and may be obscured by) the disturbed ring material that surrounds it. (See PIA20525 for more info on propellers.) The detailed structure of the Earhart propeller, as seen here, differs from that of Santos-Dumont. It is not clear whether these differences have to do with intrinsic differences between Earhart and Santos-Dumont, or whether they have to do with different viewing angles or differences in where the propellers were imaged in their orbits around Saturn. Image credit: NASA/JPL-Caltech/Space Science Institute Please note: Fees charged by the agency are for the agency's services only, and do not, nor are they intended to, convey to the user any ownership of Copyright or License in the material. The agency does not claim any ownership including but not limited to Copyright or License in the attached material. By publishing this material you expressly agree to indemnify and to hold the agency and its directors, shareholders and employees harmless from any loss, claims, damages, demands, expenses (including legal fees), or any causes of action or allegation against the agency arising out of or connected in any way with publication of the material.
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1902-01-01
NASA/Sipa USA/East News
Sipa USA
Sipa USA
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9cm x 9cm przy 300dpi
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