MOSAiC expedition scientists returned to the Arctic sea-ice pack, greeted by a surprisingly distinct boundary between the open ocean and pack ice.
Into the Ice
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MOSAiC expedition scientists returned to the Arctic sea-ice pack, greeted by a surprisingly distinct boundary between the open ocean and pack ice.
NASA astronauts Chris Cassidy and Bob Behnken will start their second spacewalk together on July 1. The duo will continue upgrading power systems on the International Space Station. The veteran spacewalkers wrapped up a spacewalk on Friday after six hours and 7 minutes swapping five aging nickel-hydrogen (NiH2) batteries with two new lithium-ion (Li-Ion) batteries. …
The web platform combines the collective scientific power of the agencies’ Earth-observing satellites to document changes in the environment and society during the pandemic.
Systems USOS Extravehicular Activity (EVA) #65/S6 Battery EVA #1: Chris Cassidy (EV1) and Bob Behnken (EV2) performed a 6 hour 7 minute EVA that completed the following tasks in support of the S6 Channel 1B battery transition from nickel hydrogen to lithium-ion batteries: NiH2 Battery 1 from S6 IEA to External Pallet (EP) Li-Ion Battery …
NASA astronauts Chris Cassidy and Robert Behnken concluded their spacewalk at 1:39 p.m. EDT, after six hours and seven minutes. The two NASA astronauts completed all the work planned for this first of four spacewalks to replace batteries that provide power for the station’s solar arrays on the starboard truss of the complex as well as initial tasks originally planned for …
Engineers have completed testing on a duplicate of Orion called the Structural Test Article (STA), needed to verify the spacecraft is ready for Artemis I — its first uncrewed test flight. NASA and its prime contractor, Lockheed Martin, built the STA to be structurally identical to Orion’s main spacecraft elements: the crew module, service module and launch abort system. The …
On June 24, 2020, engineers completed the Space Launch System (SLS) rocket’s structural testing campaign for the Artemis lunar missions by testing the liquid oxygen structural test article to find its point of failure. For the final test, the liquid oxygen tank test article — measuring 70 feet tall and 28 feet in diameter — was bolted into a massive 185,000-pound …
NASA astronauts Chris Cassidy and Robert Behnken have begun the first of two scheduled spacewalks to replace batteries on one of two power channels on the far starboard truss (S6 Truss) of the International Space Station. The spacewalkers switched their spacesuits to battery power at 7:32 a.m. EDT to begin the spacewalk, which may last …
NASA Television coverage of today’s spacewalk with NASA astronauts Chris Cassidy and Robert Behnken is now underway and available on the agency’s website. The crew members of Expedition 63 are preparing to venture outside the International Space Station for a spacewalk expected to begin at approximately 7:35 a.m. EDT and last as long as seven hours. The crew is in …
The Expedition 63 crew is in final preparations today ahead of Friday’s spacewalk to replace batteries on the outside of the International Space Station. Commander Chris Cassidy and Flight Engineer Bob Behnken will exit the station Friday around 7:35 a.m. EDT for a planned seven-hour spacewalk. They will disconnect aging nickel-hydrogen batteries from the Starboard-6 …