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  2. List of Vulcan launches - Wikipedia

    en.wikipedia.org/wiki/List_of_Vulcan_launches

    Demonstration Rocket for Agile Cislunar Operations (DRACO) is a DARPA program to demonstrate a working nuclear thermal rocket in space. TBD [19] Vulcan Centaur Cape Canaveral, SLC‑41 [20] NROL-56: TBA: NRO: Classified NRO payload. TBD [19] Vulcan Centaur Vandenberg, SLC‑3E [20] NROL-73: TBA: NRO: Classified NRO payload. TBD [19] Vulcan ...

  3. Cislunar Explorers - Wikipedia

    en.wikipedia.org/wiki/Cislunar_Explorers

    Cislunar Explorers is a pair of spacecraft that will show the viability of water electrolysis propulsion and interplanetary optical navigation to orbit the Moon. [2] Both spacecraft will launch mated together as two L-shaped 3U CubeSats, which fit together as a 6U CubeSat of about 10 cm × 20 cm × 30 cm.

  4. Demonstration Rocket for Agile Cislunar Operations - Wikipedia

    en.wikipedia.org/wiki/Demonstration_Rocket_for...

    In May 1946, the U.S. Air Force launched the Nuclear Energy for Propulsion of Aircraft (NEPA) project to explore the potential of nuclear energy for powering aircraft. [13] [14] This initiative led to a collaborative effort of the Air Force and the U.S. Atomic Energy Commission (AEC) known as the Aircraft Nuclear Propulsion (ANP) program, aimed at developing nuclear propulsion systems for ...

  5. Vulcan Centaur - Wikipedia

    en.wikipedia.org/wiki/Vulcan_Centaur

    The Space Force's USSF-51 launch in late 2022 was be the first national security classified mission, but in May 2021 the spacecraft was reassigned to an Atlas V to "mitigate schedule risk associated with Vulcan Centaur non-recurring design validation". [67] For similar reasons, the Kuiper Systems prototype flight was moved to an Atlas V rocket ...

  6. Blue Moon (spacecraft) - Wikipedia

    en.wikipedia.org/wiki/Blue_Moon_(spacecraft)

    The Cislunar Transporter is launched in two parts, a tug and a tanker, to low Earth orbit before refueling Blue Moon in a lunar near-rectilinear halo orbit. [11] Both MK2 and the Cislunar Transporter are to be powered by three BE-7 engines burning liquid hydrogen fuel and liquid oxygen oxidizer. [7]

  7. Ranger 4 - Wikipedia

    en.wikipedia.org/wiki/Ranger_4

    Ranger 4 was a spacecraft of the Ranger program, launched in 1962.It was designed to transmit pictures of the lunar surface to Earth stations during a period of 10 minutes of flight prior to crashing upon the Moon, to rough-land a seismometer capsule on the Moon, to collect gamma-ray data in flight, to study radar reflectivity of the lunar surface, and to continue testing of the Ranger program ...

  8. N1 (rocket) - Wikipedia

    en.wikipedia.org/wiki/N1_(rocket)

    Its first stage, Block A, was the most powerful rocket stage ever flown for over 50 years, with the record standing until Starship's first integrated flight test. [7] However, each of the four attempts to launch an N1 failed in flight, with the second attempt resulting in the vehicle crashing back onto its launch pad shortly after liftoff.

  9. Expander cycle - Wikipedia

    en.wikipedia.org/wiki/Expander_cycle

    The Mitsubishi LE-5A was the world's first expander bleed cycle engine to be put into operational service. [5] The Mitsubishi LE-9 is the world's first first stage expander bleed cycle engine. [6] Blue Origin chose the expander bleed cycle for the BE-3U engine used on the upper stage of its New Glenn launch vehicle. [7]