... The post-flight reconstruction of the INTERBALL Auroral probe (Interball 2) orbit has been recently finished in the Ballistic Center of the Keldysh Institute of Applied Mathematics (KIAM) of Russian Academy of Sciences. ... We shall name these new orbital elements as "Version 3" contrary to the former orbital elements "Version 1" and "Version 2" distributed earlier. All orbital elements are presented in the IKI WEB server in the F1 format . ... of the INTERBALL Project . ...
Hubble Finds Oxygen Atmosphere On Jupiter's Moon Europa . Astronomers using NASA's Hubble Space Telescope (HST) have identified the presence of an extremely tenuous atmosphere of molecular oxygen around Jupiter's second moon, Europa . ... Europa's oxygen atmosphere is so tenuous that its surface pressure is barely one hundred billionth that of the Earth," said Principal Investigator Doyle Hall, of Johns Hopkins. ... The oxygen gas slowly leaks into space and must be replenished continuously. ...