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Matrioshka brains and other megastructures are a common theme in the fictional Orion's Arm universe, where they are used by superintelligences as processing nodes connected by artificial wormholes. The Dennis E. Taylor novel Heaven's River mentions building a Matrioshka brain for use with replicant and artificial intelligence.
Orion's Arm (also called the Orion's Arm Universe Project, OAUP, or simply OA) is a multi-authored online hard science fiction [1] world-building project, first established in 2000 [2] by M. Alan Kazlev, Donna Malcolm Hirsekorn, Bernd Helfert and Anders Sandberg and further co-authored by many people since. [3]
JWST NIRCam observed the central part of the Orion Nebula, including proplyd 114–426. This observation found a dip at 3 μm, which is seen as evidence of water ice . The grain size was estimated to be smaller than 0.25 to 5 μm and the dust+ice mass of the disk was estimated to be 0.46 M E in the silhouette region. [ 3 ]
NASA artist rendering, from 1999, of the Project Orion pulsed nuclear fission spacecraft. Project Orion was a study conducted in the 1950s and 1960s by the United States Air Force, DARPA, [1] and NASA into the viability of a nuclear pulse spaceship that would be directly propelled by a series of atomic explosions behind the craft.
Orel (after Russian departure from the project) Crew Space Transportation System ( CSTS ), or Advanced Crew Transportation System ( ACTS ), was a proposed design for a crewed spacecraft for low Earth orbit operations such as servicing the International Space Station , but also capable of exploration of the Moon and beyond.
Emblem of the Artemis program. The Artemis program is a human spaceflight program by the United States.The Artemis program is intended to reestablish a human presence on the Moon for the first time since Apollo 17 in 1972; mid-term objectives include establishing an international expedition team, and a sustainable human presence on the Moon.
500 day HAB/MPLM with a cryogenic propulsion stage. The Deep Space Habitat (DSH) is a series of concepts explored between 2012 and 2018 by NASA for methods to support crewed exploration missions to the Moon, asteroids, and eventually Mars. [1]
Meissa / ˈ m aɪ s ə /, designated Lambda Orionis (λ Orionis, abbreviated Lambda Ori, λ Ori) is a star in the constellation of Orion. It is a multiple star approximately 1,300 ly away with a combined apparent magnitude of 3.33. [12] The main components are an O8 giant star and a B-class main sequence star, separated by about 4″.