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Archive for the Space Exploration category

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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April 29, 2020

Apollo 13 Booster Impact

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NASA dicit:

The story of Apollo 13 goes beyond a tale of survival. The mission also successfully completed a science investigation that is still helping to inform our understanding of the Moon to this day. Early in Apollo 13’s voyage, Mission Control sent the spacecraft’s empty S-IVB rocket booster on a collision course with the lunar surface, where a seismometer set up by the Apollo 12 mission would measure the tremors. This video highlights the beginning and end of that impact experiment, and shows how current data and imagery from NASA’s Lunar Reconnaissance Orbiter mission helps us better interpret and analyze the results.

This video not only contains archival footage captured by the crew of Apollo 13, but also newly-uncovered audio of a humorous exchange between astronauts Jim Lovell, Fred Haise, and Capcom Vance Brand at Mission Control. This booster impact experiment audio had been recorded and sent to the National Archives and Records Administration in 1970, but was unplayable at that facility due to differences in audio equipment, so it sat in storage. The only machine capable of playback is located at NASA’s Johnson Space Center, but that equipment had been out of service for decades. In 2015 an effort funded by the National Science Foundation saw the equipment refurbished, and all 7,200 hours of Apollo 13 audio was digitized. This material was first made publicly available in early 2020 at ApolloInRealTime.org. Among this never-before-heard material we were able to find the conversation covered in this video.

This video also utilizes images from the Lunar Reconnaissance Orbiter Camera (LROC) as well as a data visualization of the Moon showing the locations of the booster impact experiment relative to the Apollo 12 seismometer station. The network of seismometers set up during the Apollo era, combined with data from the LRO mission, is teaching us about moonquakes and the interior structure of the Moon. This information will be useful to all future NASA missions to the lunar surface.

Video credit: NASA’s Goddard Space Flight Center/Video Produced & Edited by: David Ladd (USRA)/Data visualizations by: Ernie Wright (USRA)/Music Provided by Universal Production Music: “Trust” – Jose Tomas Novoa Espinosa/Apollo 13 footage and audio provided by: ApolloInRealTime.org

 

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March 16, 2020

Dragonfly

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NASA dicit:

Dragonfly is a NASA mission to explore the chemistry and habitability of Saturn’s largest moon, Titan. The fourth mission in the New Frontiers line, Dragonfly will send an autonomously-operated rotorcraft to visit dozens of sites on Titan, investigating the moon’s surface and shallow subsurface for organic molecules and possible biosignatures. To carry out its mission, Dragonfly is equipped with a neutron spectrometer, a drill system, and a mass spectrometer, allowing scientists to make a detailed survey of Titan’s chemical makeup. Dragonfly is scheduled to launch in 2026 and arrive at Titan in 2034.

Video credit: NASA’s Goddard Space Flight Center/Johns Hopkins APL/Dan Gallagher (USRA): Producer, Narrator, Writer/Jonathan North (USRA): Lead Animator/Melissa Trainer (NASA/GSFC): Lead Writer, Scientist/ Michael Lentz (USRA): Animator/Ann Parsons (NASA/GSFC): Scientist/Elizabeth Turtle (Johns Hopkins University/APL): Scientist/Aaron E. Lepsch (ADNET): Technical Support

 

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March 3, 2020

Nightingale

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NASA dicit:

OSIRIS-REx is a NASA mission to explore near-Earth asteroid Bennu and return a sample to Earth. Prior to arriving at Bennu, mission planners had expected the asteroid’s surface to consist largely of fine-grained material, like a sandy beach. When OSIRIS-REx arrived in December 2018, however, it was greeted by a rocky world covered with boulders.

This unexpected roughness means that there are few places on Bennu where OSIRIS-REx can safely touch down and collect a sample. After a year of studying the asteroid, the mission announced a primary sample collection site, which they designated “Nightingale,” along with a backup site called “Osprey.” In August 2020, OSIRIS-REx will descend to Nightingale and attempt to collect up to four-and-a-half pounds of loose material, for return to Earth in 2023.

Video credit: NASA Goddard

 

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February 27, 2020

Artemis in 4K

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Wikipedia dicit:

The Artemis program is an ongoing crewed spaceflight program carried out predominately by NASA, U.S. commercial spaceflight companies, and international partners such as the European Space Agency (ESA), the Japan Aerospace Exploration Agency (JAXA), and the Canadian Space Agency (CSA) with the goal of landing “the first woman and the next man” on the Moon, specifically at the lunar south pole region by 2024. NASA sees Artemis as the next step towards the long-term goal of establishing a sustainable presence on the Moon, laying the foundation for private companies to build a lunar economy, and eventually sending humans to Mars.

Video credit: NASA

 

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January 26, 2020

Remember Fallen Heroes

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They will always be remembered…

Apollo 1 (January 27, 1967)

Virgil “Gus” Grissom – Commander, Edward White – Command Pilot, Roger Chaffee – Pilot

STS-51 L (January 28, 1986)

Francis R. Scobee – Commander, Michael J. Smith – Pilot, Judith A. Resnik – Mission Specialist 1, Ellison Onizuka – Mission Specialist 2, Ronald E. McNair – Mission Specialist 3, Gregory B. Jarvis – Payload Specialist 1, Sharon Christa McAuliffe – Payload Specialist 2

STS-107 (February 1, 2003)

Rick D. Husband – Commander, William C. McCool – Pilot, Michael P. Anderson – Payload Commander, David M. Brown – Mission Specialist 1, Kalpana Chawla – Mission Specialist 2, Laurel Clark – Mission Specialist 3, Ilan Ramon – Payload Specialist 1

Video credit: NASA

 

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