The Stanford torus is a proposed NASA design for a space habitat capable of housing 10,000 to 140,000 permanent residents.
The Stanford torus was proposed during the 1975 NASA Summer Study, conducted at Stanford University, with the purpose of exploring and speculating on designs for future space colonies(Gerard O'Neill later proposed his Island One or Bernal sphere as an alternative to the torus). "Stanford torus" refers only to this particular version of the design, as the concept of a ring-shaped rotating space station was previously proposed by Wernher von Braun and Herman Potočnik.
It consists of a torus, or doughnut-shaped ring, that is 1.8 km in diameter (for the proposed 10,000 person habitat described in the 1975 Summer Study) and rotates once per minute to provide between 0.9g and 1.0g of artificial gravity on the inside of the outer ring via centrifugal force.
Sunlight is provided to the interior of the torus by a system of mirrors. The ring is connected to a hub via a number of "spokes", which serve as conduits for people and materials travelling to and from the hub. Since the hub is at the rotational axis of the station, it experiences the least artificial gravity and is the easiest location for spacecraft to dock. Zero-gravity industry is performed in a non-rotating module attached to the hub's axis.
The interior space of the torus itself is used as living space, and is large enough that a "natural" environment can be simulated; the torus appears similar to a long, narrow, straight glacial valley whose ends curve upward and eventually meet overhead to form a complete circle. The population density is similar to a dense suburb, with part of the ring dedicated to agriculture and part to housing.
The Worldstone, otherwise known as the "Eye of Anu", "Heart of Creation" and "Heart of the World" was a colossal, mountain-sized object of immense power. Sought by both angels and demons, it would be used to create Sanctuary before being destroyed as a result of the Great Conflict. And yet for all its importance, few of Sanctuary's inhabitants are aware that it even existed.
The Worldstone originally lay in the realm of Pandemonium, the scar of the universe's violent birth from the battle between Anu and Tathamet. It was the foundation of all places and times, a nexus of realities. A foundation that the forces of Heaven and Hell sought control of. Oral history states that whichever side controlled the stone allowed it to alter reality and create life and worlds with barely any restriction. Both angels and demons created worlds that reflected their nature, but all of these worlds were inherently flawed, and were doomed to wither and die. At some point, the archangel Tyrael ordered that a bastion be built around the stone, which would come to be known as the Pandemonium Fortress. The fortress changed hands many times over the course of the Great Conflict, and the possession of the Worldstone alternated in turn.
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Experience the SpaceX Falcon Heavy launch like never before!
The first test flight of Falcon Heavy is targeted for Tuesday, Feb. 6th at 1:30 PM ET from Launch Complex 39A at Kennedy Space Center in Florida. When Falcon Heavy lifts off, it will be the most powerful operational rocket in the world by a factor of two.
It will be Launching Elon Musk's Cherry Red Tesla Roadster on a Hohmann transfer orbit to Mars.
Movement is WASD with shift for speed.
This is a 1-1 scale replica of the Apollo 17 landing zone made using Lunar Reconnaissance Orbiter data. It is roughly 21x21 km with texture data equal to 1.2m/px.
Apollo 17 was the final mission of NASA's Apollo program. Launched at 12:33 a.m. Eastern Standard Time (EST) on December 7, 1972, with a crew made up of Commander Eugene Cernan, Command Module Pilot Ronald Evans, and Lunar Module Pilot Harrison Schmitt, it was the last use of Apollo hardware for its original purpose; after Apollo 17, extra Apollo spacecraft were used in the Skylab and Apollo–Soyuz programs.
Apollo 17 was the first night launch of a U.S. human spaceflight and the final manned launch of a Saturn V rocket. It was a "J-type mission" which included three days on the lunar surface, extended scientific capability, and the third Lunar Roving Vehicle (LRV). While Evans remained in lunar orbit in the Command/Service Module (CSM), Cernan and Schmitt spent just over three days on the moon in the Taurus–Littrow valley and completed three moonwalks, taking lunar samples and deploying scientific instruments. Evans took scientific measurements and photographs from orbit using a Scientific Instruments Module mounted in the Service Module.
The landing site was chosen with the primary objectives of Apollo 17 in mind: to sample lunar highland material older than the impact that formed Mare Imbrium, and investigate the possibility of relatively new volcanic activity in the same area. Cernan, Evans and Schmitt returned to Earth on December 19 after a 12-day mission.
Apollo 17 is the most recent manned Moon landing and the most recent time humans travelled beyond low Earth orbit. It was also the first mission to have no one on board who had been a test pilot; X-15 test pilot Joe Engle lost the lunar module pilot assignment to Schmitt, a scientist. The mission broke several records: the longest moon landing, longest total extravehicular activities (moonwalks), largest lunar sample, and longest time in lunar orbit.