WASHINGTON, June 18 -- NASA Ames Research Center is seeking commercial aviation services to support the Snow4Flow Earth Venture Suborbital-4 mission, aimed at enhancing the understanding of changes in Northern Hemisphere glaciers. The contract will involve the provision, modification, and operation of a Basler BT-67 aircraft configured for scientific use, including crew, maintenance, and insurance services. This initiative is critical for conducting three planned Arctic campaigns from 2027 to 2029 across Alaska, the Yukon Territory, Svalbard, G more CTR