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federative    音标拼音: [f'ɛdɚətɪv] [f'ɛdrətɪv]
a. 联合的,联邦的,联邦性的

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  • Moon to Mars | NASAs Artemis Program - NASA
    Explore how NASA’s Artemis mission will return humans to the Moon, prepare for Mars, and shape the future of space exploration
  • Fired Up: Engines and Motors Put Artemis Mission in Motion
    Additional Info: The main engine on the first mission is a repurposed Space Shuttle Orbital Maneuvering System engine that has flown in space before The engine flying on Artemis 1 flew on 19 space shuttle flights, beginning with STS-41G in October 1984 and ending with STS-112 in October 2002
  • Artemis II: NASA’s First Crewed Lunar Flyby in 50 Years - NASA
    Meet the Artemis II crew and learn how NASA’s 10-day lunar flyby mission will test deep space systems and pave the way for future Moon landings
  • RS-25 Rocket Engines Return to Launch NASA’s Artemis Moon Missions
    The rocket engine with one of the most storied histories in spaceflight, the RS-25, is returning to space for a second act – this time to send humans on the Artemis missions to explore the Moon As the space shuttle main engine, the RS-25 has a proven record of launching 135 missions spanning over three decades At the end of the shuttle program in 2011, 16 RS-25 engines that helped build
  • Artemis II: Inside NASAs New Ride to the Moon
    Tour Orion—NASA’s spaceship to the Moon—and pop the hood of NASA’s Space Launch System rocket, which sends Artemis astronauts to deep space
  • Space Launch System (SLS) - NASA
    Combining power and capability, NASA’s Space Launch System (SLS) rocket is part of NASA’s backbone for deep space exploration and Artemis
  • New Fleet of Vehicles for NASA’s Artemis Crews Arrives at Kennedy
    With the Vehicle Assembly Building in the background, the three specially designed, fully electric, environmentally friendly crew transportation vehicles for Artemis missions arrived at NASA’s Kennedy Space Center in Florida on July 11, 2023 The zero-emission vehicles, which will carry astronauts to Launch Complex 39B for Artemis missions, were delivered by the manufacturer, Canoo
  • SLS RS-25 Engine Fact Sheet - NASA
    SLS Block 1, which launched Artemis I and Technicians at NASA’s Michoud Assembly Facility will launch Artemis II and III, uses four RS-25 in New Orleans work to attach the first of four RS-25 engines in the core stage, along with two solid engines to the core stage of the SLS (Space Launch rocket boosters It can carry 27 metric tons (t) System) rocket for the agency’s Artemis I mission or
  • NASA’s Artemis II Mission to Fly Legacy Keepsakes with Astronaut Crew
    Also flying aboard the Artemis II mission will be a 13-by-8-inch American flag, which flew with the first shuttle mission, STS-1, the final shuttle mission, STS-135, and NASA’s first crewed test flight of SpaceX’s Crew Dragon spacecraft, SpaceX Demo-2
  • ARTEMIS II MISSION AVAILABILITY – APRIL 2026 - NASA
    (Updated 03 12 2026, Subject to Adjustments) Calendar Legend





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