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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.
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 ]
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]
An early appearance of an Orion-style nuclear pulse propelled rocket in science fiction was in the science fiction novel Empire of the Atom written by A. E. van Vogt in 1956. In this novel there is a post-atomic-war interplanetary empire called the Empire of Lynn that uses Orion-type nuclear rockets for interplanetary spaceflight.
HD 38858 is a star in the Orion constellation. It is a G-type main-sequence star, located at a distance of about 50 light-years.It has an apparent magnitude of 5.97, therefore can be seen to the naked eye only in sufficiently dark skies.
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.
Blip-A – light propelled (indirectly) ship built and crewed by Eridians in Project Hail Mary. Blip-A is an exonym; the direct translation would be 'Ship'. C-57D – the United Planets cruiser that was sent to the planet Altair IV in Forbidden Planet [46] Conquistador – the largest battleship of the Henrietta Planetary Alliance (Starship ...
Current models show that the metallicity of the star and proplyd, along with the correct planetary system temperature and distance from the star, are keys to planet and planetesimal formation. To date, the Solar System , with 8 planets, 5 dwarf planets and 5 planetesimal systems, is the largest planetary system found.