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<\/a>As a result of the ongoing review by NASA\u00a0managers and engineers after a coolant leak from a backup radiator on the International Space Station<\/a>\u2019s Nauka multipurpose laboratory module, a spacewalk that was targeted for no earlier than Thursday, Oct. 19 now is deferred until later this year.<\/p>\n The spacewalk date was adjusted to allow engineers additional time to complete analysis of the coolant leak, which occurred and stopped on Oct. 9. The coolant is not toxic or hazardous for the crew, but experts are discussing how to best keep small traces of the substance from getting into some internal systems to avoid equipment degradation over time. The tasks planned for this spacewalk are not time-sensitive and the schedule adjustment has no impact on space station operations.<\/p>\n A spacewalk scheduled for Monday, Oct. 30, now becomes U.S. Spacewalk 89. During that spacewalk, NASA astronauts\u00a0Loral O\u2019Hara<\/a>\u00a0 and\u00a0Jasmin Moghbeli<\/a>\u00a0will exit the station\u2019s Quest airlock<\/a> to complete the removal of a faulty electronics box, called a Radio Frequency Group, from a communications antenna bracket and replace one of twelve Trundle Bearing Assemblies on the port truss Solar Alpha Rotary Joint. The bearings enable the station\u2019s solar arrays to rotate properly to track the Sun as the station orbits the Earth. During this spacewalk, Moghbeli will serve as EVA crew member 1 and O\u2019Hara will serve as EVA crew member 2. This will be the first spacewalk for both O\u2019Hara and Moghbeli.<\/p>\n Later this year, O\u2019Hara and ESA (European Space Agency) astronaut\u00a0Andreas Mogensen<\/a>\u00a0will conduct what will become U.S. Spacewalk 90, to collect samples for analysis to see whether microorganisms may exist on the exterior of the orbital complex. They also will replace a high-definition camera on the port truss of the station and conduct other maintenance work to prepare for future spacewalks.<\/p>\n Meanwhile, a spacewalk by Roscosmos cosmonauts Oleg Kononenko and Nikolai Chub remains scheduled for Wednesday, Oct. 25. During that spacewalk, Kononenko and Chub will install a synthetic radar communications system on the Russian segment of the orbiting laboratory and deploy a nanosatellite to test solar sail technology. In addition, they plan to inspect and photograph the backup radiator that leaked on the Nauka multipurpose laboratory module<\/a>.<\/p>\n Spacewalk preparations continued aboard the International Space Station<\/a> as the Expedition 70<\/a> astronauts and cosmonauts serviced their individual spacesuits on Monday. Cargo operations are also underway as the orbital residents work inside the Cygnus space freighter and look ahead to the next SpaceX Dragon cargo mission.<\/p>\n Mogensen began Monday emptying and refilling water tanks and cleaning cooling loops inside a pair of spacesuits. Moghbeli completed the maintenance in the afternoon terminating the cooling loop work then deconfiguring the spacesuits.<\/p>\n Mogensen then spent the rest of the afternoon partnering with O\u2019Hara unpacking supplies and loading trash inside Northrop Grumman\u2019s Cygnus cargo craft<\/a>. Moghbeli joined Flight Engineer Satoshi Furukawa<\/a> of JAXA (Japan Aerospace Exploration Agency) pre-packing cargo bags that will be loaded aboard the next SpaceX Dragon cargo spacecraft to visit the orbiting lab. Furukawa began his day processing samples and swapping gas bottles inside the Electrostatic Levitation Furnace<\/a>, a high temperature thermophysics research device.<\/p>\n Kononenko and Chub spent Monday morning preparing for their upcoming spacewalk as they charged batteries and inspected life support components inside their Orlan spacesuits. Following that, Kononenko moved on to cardiac research while Chub checked and closed hatches between the Poisk airlock<\/a> and the Roscosmos Progress 84<\/a> resupply ship.<\/p>\n Roscosmos Flight Engineer Konstantin Borisov began his day working on the Elektron oxygen generator and other life support components. In the afternoon, he assisted Kononenko with his cardiac work and inspected portions of the Zvezda service module<\/a>.<\/p>\n Powered by WPeMatico<\/a><\/small><\/p>\n Get The Details…<\/a><\/p>\n Mark Garcia <\/p>\n","protected":false},"excerpt":{"rendered":" As a result of the ongoing review by NASA\u00a0managers and engineers after a coolant leak from a backup radiator on the International Space Station\u2019s Nauka multipurpose laboratory module, a spacewalk that was targeted for no earlier than Thursday, Oct. 19 now is deferred until later this year. The spacewalk date was adjusted to allow engineers \u2026 Continue reading