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  2. Vulcan (hypothetical planet) - Wikipedia

    en.wikipedia.org/wiki/Vulcan_(hypothetical_planet)

    Vulcan in a lithographic map from 1846 [1] Vulcan / ˈ v ʌ l k ən / [2] was a proposed planet that some pre-20th century astronomers thought existed in an orbit between Mercury and the Sun. Speculation about, and even purported observations of, intermercurial bodies or planets date back to the beginning of the 17th century.

  3. Vulcan Centaur - Wikipedia

    en.wikipedia.org/wiki/Vulcan_Centaur

    Vulcan Centaur is a heavy-lift launch vehicle [a] developed and operated by United Launch Alliance (ULA). It is a two-stage-to-orbit launch vehicle consisting of the Vulcan first stage and the Centaur second stage.

  4. Fictional planets of the Solar System - Wikipedia

    en.wikipedia.org/wiki/Fictional_planets_of_the...

    Schematic diagram of the orbits of the fictional planets Vulcan, Counter-Earth, and Phaëton in relation to the five innermost planets of the Solar System.. Fictional planets of the Solar System have been depicted since the 1700s—often but not always corresponding to hypothetical planets that have at one point or another been seriously proposed by real-world astronomers, though commonly ...

  5. Boeing's Space Business Could Be Unstoppable in 2025 ... - AOL

    www.aol.com/boeings-space-business-could...

    Although the Vulcan rocket per se launched successfully, and delivered its payload to orbit, ... Still, the Northrop booster is an important part of the whole Vulcan launch system, and it didn't ...

  6. List of hypothetical Solar System objects - Wikipedia

    en.wikipedia.org/wiki/List_of_hypothetical_Solar...

    Evidence from 2019 suggests that it may have originated in the outer Solar System. [22] Vulcan, a hypothetical planet once believed to exist inside the orbit of Mercury. Initially proposed as the cause for the perturbations in the orbit of Mercury, some astronomers spent many years searching for it, with many instances of people claiming to ...

  7. Boeing and Lockheed Martin's New Space Rocket May Have ... - AOL

    www.aol.com/finance/boeing-lockheed-martins...

    They give the Vulcan first stage a bit of extra oomph to help lift it into orbit, then fall away and let Vulcan's main engines, built by Jeff Bezos' Blue Origin space company, and then the Centaur ...

  8. List of Vulcan launches - Wikipedia

    en.wikipedia.org/wiki/List_of_Vulcan_launches

    This caused the rocket to slightly tilt before the guidance system and main engines successfully corrected and extended their burn by roughly 20 seconds to compensate. Despite the anomaly, the rocket achieved nominal orbital insertion, [ 7 ] [ 8 ] with the Space Force praising the launch and "the robustness of the total Vulcan system".

  9. To rival SpaceX’s Starship, ULA eyes Vulcan rocket upgrade

    www.aol.com/news/rival-spacex-starship-ula-eyes...

    ULA wants to develop a Vulcan model tailored to the increasingly lucrative low Earth orbit (LEO) market, mainly due to SpaceX launching thousands of satellites there for its Starlink Internet service.