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Archive for the Spacecraft Design category

July 8, 2020

ARTEMIS

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NASA dicit:

Preparing to explore the surface of the Moon goes well beyond designing and building safe spacecraft and spacesuits. NASA also has to ensure the surface vehicles and suits have the mobility required to do science, and that astronauts have the tools they need to identify and scoop up rock and soil samples. Additionally, NASA astronauts are trained in geology, spending countless hours practicing doing science at locations on Earth that resemble regions they might see on the Moon. All this is done in an effort to establish a long-term presence on the Moon and to help answer some outstanding science questions about the history of Earth and of the solar system.

Video credit: NASA’s Goddard Space Flight Center/James Tralie (ADNET): Lead Producer, Lead Editor/Lonnie Shekhtman (ADNET): Lead Writer/Kelsey Young (NASA/GSFC): Scientist/Trevor Graff (Jacobs Technology): Scientist/Aaron E. Lepsch (ADNET): Technical Support/”Saana” and “Seasons” by Torsti Juhani Spoof from Universal Production Music

 

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July 3, 2020

Sky Crane

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Wikipedia dicit:

The sky crane system lowers the rover with a 7.6 m (25 ft) tether to a soft landing—wheels down—on the surface of Mars. This system consists of a bridle lowering the rover on three nylon tethers and an electrical cable carrying information and power between the descent stage and rover. As the support and data cables unreel, the rover’s six motorized wheels snap into position. At roughly 7.5 m (25 ft) below the descent stage the sky crane system slows to a halt and the rover touches down. After the rover touches down, it waits two seconds to confirm that it is on solid ground by detecting the weight on the wheels and fires several pyros (small explosive devices) activating cable cutters on the bridle and umbilical cords to free itself from the descent stage. The descent stage then flies away to a crash landing site 650 m (2,100 ft) away.

Video credit: Aerojet Rocketdyne

 

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May 22, 2020

Orion

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NASA dicit:

The Orion Multi-Purpose Crew Vehicle (Orion MPCV) is a class of partially reusable space capsule planned to be used after 2021 in NASA’s human spaceflight programs. The spacecraft consists a Crew Module (CM) manufactured by Lockheed Martin and the European Service Module (ESM) manufactured by Airbus Defence and Space. Capable of supporting a crew of six beyond low Earth orbit, Orion can last 21 days undocked and up to six months docked. It is equipped with solar power, an automated docking system, and glass cockpit interfaces modeled after those used in the Boeing 787 Dreamliner. A single AJ10 engine provides the spacecraft’s primary propulsion, while eight R-4D-11 engines, and six pods of custom reaction control system engines developed by Airbus, provide the spacecraft’s secondary propulsion. Although compatible with other launch vehicles, Orion is primarily designed to launch atop a Space Launch System (SLS) rocket, with a tower launch escape system.

Orion was originally conceived by Lockheed Martin as a proposal for the Crew Exploration Vehicle (CEV) to be used in NASA’s Constellation program. Lockheed Martin’s proposal defeated a competing proposal by Northrop Grumman, and was selected by NASA in 2006 to be the CEV. Originally designed with a service module featuring a new “Orion Main Engine” and a pair of circular solar panels, the spacecraft was to be launched atop the Ares I rocket with either a traditional launch escape system or the experimental Max Launch Abort System equipped. Following the cancellation of the Constellation program in 2010, Orion was heavily redesigned for use in NASA’s Journey to Mars initiative; later named Moon to Mars. The SLS replaced the Ares I as Orion’s primary launch vehicle, and the service module was replaced with a design based on the European Space Agency’s Automated Transfer Vehicle. A development version of Orion’s CM was launched in 2014 during Exploration Flight Test-1, while at least four test articles have been produced. As of 2020, three flight-worthy Orion spacecraft are under construction, with an additional one ordered for use in NASA’s Artemis program; the first of these is due to be launched in 2021 during Artemis 1.

Video credit: Lockheed Martin

 

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May 7, 2020

Blue Origin’s National Team

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Blue Origin dicit:

The Blue Origin National Team, which includes Lockheed Martin, Northrop Grumman, and Draper, was selected by NASA to begin to develop the Artemis Human Landing System.

Using existing and in development technologies provides the head start needed to meet NASA’s goal of landing at the South Pole of the Moon. Lockheed Martin’s Ascent Element is based on Orion; Northrop Grumman’s Transfer Element is based on Cygnus; and Blue Origin’s Descent Element is based on the Blue Moon lander and BE-7 engine, which has been in development for several years.

Video credit: Blue Origin

 

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May 6, 2020

Ingenuity

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Wikipedia dicit:

Ingenuity (also known as the Mars Helicopter) is a robotic helicopter that is planned to be used to test the technology to scout interesting targets on Mars, and help plan the best driving route for future Mars rovers. The small drone helicopter is planned for deployment in 2021 from the Perseverance rover as part of the Mars 2020 mission. It is expected to fly up to five times during its 30-day test campaign, early in the rover’s mission, as it is primarily a technology demonstration. Each flight is planned to take no more than three minutes, at altitudes ranging from 3 to 10 m above the ground. It could potentially cover a distance of up to 300 metres (980 ft) per flight. It can use autonomous control and communicate with the Perseverance rover directly after each landing. If it works as expected, NASA could build on the design for future Mars aerial missions.

Video credit: NASA/JPL-Caltech

 

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May 5, 2020

Gateway Lunar Outpost

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Wikipedia dicit:

The Lunar Gateway is an in-development mini-space station in lunar orbit intended to serve as a solar-powered communication hub, science laboratory, short-term habitation module, and holding area for rovers and other robots. It is expected to play a major role in NASA’s Artemis program, after 2024.

While the project is led by NASA, the Gateway is meant to be developed, serviced, and utilized in collaboration with commercial and international partners. It will serve as the staging point for both robotic and crewed exploration of the lunar south pole, and is the proposed staging point for NASA’s Deep Space Transport concept for transport to Mars. The science disciplines to be studied on the Gateway are expected to include planetary science, astrophysics, Earth observations, heliophysics, fundamental space biology, and human health and performance.

Gateway development includes all of the International Space Station partners: ESA, NASA, Roscosmos, JAXA, and CSA. Construction is planned to take place in the 2020s. The International Space Exploration Coordination Group (ISECG), which is composed of more than 14 space agencies including all major ones, has concluded that Gateway will be critical in expanding a human presence to the Moon, Mars, and deeper into the Solar System.

Video credit: NASA’s Kennedy Space Center

 

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