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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.
Vulcan Centaur VC4L [13] Cape Canaveral, SLC‑41: SSC Demo-1 (Dream Chaser Tenacity) LEO NASA First flight of Dream Chaser. Maiden flight of the Vulcan Centaur VC4L configuration. Q3 2025 [18] Vulcan Centaur VC2S Vandenberg, SLC‑3E: SDA T1TR-B LEO: SDA: Tranche 1 Tracking Layer B missile tracking satellites. Q3 2025 [18] Vulcan Centaur VC2S
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.
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 ...
This comparison of orbital launch systems lists the attributes of all current and future individual rocket configurations designed to reach orbit. A first list contains rockets that are operational or have attempted an orbital flight attempt as of 2024; a second list includes all upcoming rockets.
A record for the most people simultaneously in orbit was set on 11 September, with 19 individuals. This was achieved following the launch of the three-person Soyuz MS-26 mission to the International Space Station (ISS), joining the nine crew members already aboard the ISS, the three crew members of China's Tiangong space station , and the four ...
The vulcanoids are a hypothetical population of asteroids that orbit the Sun in a dynamically stable zone inside the orbit of the planet Mercury. They are named after the hypothetical planet Vulcan, which was proposed on the basis of irregularities in Mercury's orbit that were later found to be explained by general relativity. So far, no ...
A heavy-lift launch vehicle (HLV) is an orbital launch vehicle capable of lifting payloads between 20,000 to 50,000 kg (44,000 to 110,000 lb) (by NASA classification) or between 20,000 to 100,000 kilograms (44,000 to 220,000 lb) (by Russian classification) [1] into low Earth orbit (LEO). [2]