Search results
Results from the WOW.Com Content Network
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.
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 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.
A vulcanoid is an asteroid in a stable orbit with a semi-major axis less than that of Mercury (i.e. 0.387 AU). [7] [17] This does not include objects like sungrazing comets, which, although they have perihelia inside the orbit of Mercury, have far greater semi-major axes. [7]
The first payload, the Hot Bird 6 communications satellite, was launched to geostationary transfer orbit (GTO) on 21 August 2002 by an Atlas V 401. [ 183 ] On 12 August 2005, the Mars Reconnaissance Orbiter was launched aboard an Atlas V 401 launch vehicle from Space Launch Complex 41 at Cape Canaveral Air Force Station (CCAFS).
All the three probes entered lunar orbit successfully on 24 March 2024 (Both were attached to each other and separated in lunar orbit on 3 April 2024). [ 36 ] [ 37 ] China sent Chang'e 6 on 3 May 2024, which conducted the first lunar sample return from Apollo Basin on the far side of the Moon . [ 38 ]
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.
The RL10 is a liquid-fuel cryogenic rocket engine built in the United States by Aerojet Rocketdyne that burns cryogenic liquid hydrogen and liquid oxygen propellants. Modern versions produce up to 110 kN (24,729 lb f) of thrust per engine in vacuum.