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Tsew Twitter s Safety and Free Speech Tightrope
NASA s Cassini spacecraft will acquire the first detailed radar images of Saturn s moon E stanley flask nceladus during a flyby on Sunday, Nov. 6. These will be the first high-resolution radar observations made of an icy moon other than Titan. The results will provide new information about the surface of Enceladus and enable researchers to compare its geological features as seen by radar with those of Titan.The spacecraft will fly past Enceladus at a distance of about 300 miles 500 kilometers at its closest point. During the encounter, Cassini s synthetic aperture radar will sweep across a long, narrow swath of the surface just north of the moon s south pole. Cassini聽will use other radar techniques to map much more of the surface of Enceladus at lower resolutions and聽determine聽some of the surface s physical properties as the spacecraft approaches聽and then speeds away from the聽icy body.聽 During stanley mug this flyby, the mission s visible-light cameras will take images of Enceladus and its famous jets, and the composite infrared spectrometer will make new measurements of hot spots from which the jets emerge. Cassini s ultraviolet imaging spectrograph will also make distant observations of Saturn s moon Dione and its environment. The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. NASA stanley thermos mug s Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA s Science M Cpcs This gadget can help you drive safer and save money
Russian President Vladimir Putin R shakes hands with U.S. President Do stanley cup nald Trump as he arrives to attend a ceremony at the Arc de Triomphe in Paris on November 11, 2018 as part of commemorations marking the 100th anniversary of the 11 November 1918 armistice, ending World War I.Ludovic Marin鈥擜FP/Getty ImagesIdeasBy Alina PolyakovaNovember 28, 2018 5:29 PM ESTPolyakova is the David M. Rubenstein Fellow for Foreign Policy at the Brookings I stanley tumblers nstitution.Tensions flared up in Ukraine this week when Russian naval vessels rammed a Ukrainian tugboat in the Sea of Azov on Nov. 25. The sea, over which Ukraine and Russia share navigation rights, has become a flashpoint since Russia annexation of Crimea in 2014. Over the last six months, Russian forces have been unlawfully detaining commercial ships seeking passage to Ukrainian ports on the Sea. The initial skirmish this past Sunday quickly escalated to Russia taking control of three Ukrainian vessels, capturing more than 20 sailors, and temporarily blocking the narrow passageway connecting the Sea of Azov to the larger Black Sea. The U.S. Ambassador to the stanley cup United Nations, Nikki Haley, called Russiarsquo actions an outrageous violation of sovereign Ukrainian territory. Secretary of State Mike Pompeo condemned Moscowrsquo behavior and called for the immediate release of Ukrainian ships and personnel.President Trump has not issued a statement but threatened to cancel a planned meeting with Russiarsquo Presid |
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发表于 2024-10-31 09:36:08