Cohete Atlas V Con El NROL-101

Cohete Atlas V con el NROL-101

Crédito: ULA

Cohete Atlas V Con El NROL-101

More Posts from Glaretum and Others

4 years ago

Tomorrow’s Technology on the Space Station Today

Tablets, smart appliances, and other technologies that are an indispensable part of daily life are no longer state-of-the-art compared to the research and technology development going on over our heads. As we celebrate 20 years of humans continuously living and working in space aboard the International Space Station, we’re recapping some of the out-of-this-world tech development and research being done on the orbiting lab too.

Our Space Technology Mission Directorate (STMD) helps redefine state-of-the-art tech for living and working in space. Here are 10 technologies tried and tested on the space station with helping hands from its astronaut occupants over the years.

1. Astronaut Wanna-Bees

Astronauts on the space station are responsible for everything from conducting science experiments and deploying satellites to tracking inventory and cleaning. While all are necessary, the crew can delegate some jobs to the newest robotic inhabitants – Astrobees.

These cube-shaped robots can work independently or in tandem, carrying out research activities. Once they prove themselves, the bots will take on some of the more time-consuming tasks, such as monitoring the status of dozens of experiments. The three robots – named Bumble, Honey, and Queen – can operate autonomously following a programmed set of instructions or controlled remotely. Each uses cameras for navigation, fans for propulsion, and a rechargeable battery for power. The robots also have a perching arm that lets them grip handrails or hold items. These free-flying helpers take advantage of another STMD technology called Gecko Grippers that “stick” to any surface.

2. Getting a Grip in Microgravity

We wanted to develop tools for grabbing space junk, and something strong and super-sticky is necessary to collect the diverse material orbiting Earth. So, engineers studied the gecko lizard, perhaps the most efficient “grabber” on this planet. Millions of extremely fine hairs on the bottom of their feet make an incredible amount of contact with surfaces so the gecko can hold onto anything. That inspired our engineers to create a similar material.

Now the Gecko Gripper made by OnRobot is sold on the commercial market, supporting industrial activities such as materials handling and assembly. The NASA gecko adhesive gripper that’s being tested in microgravity on the Astrobee robots was fabricated on Earth. But other small plastic parts can now be manufactured in space.

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3. Make It, or Don’t Take It

Frequent resupply trips from Earth to the Moon, Mars, and other solar system bodies are simply not realistic. In order to become truly Earth-independent and increase sustainability, we had to come up with ways to manufacture supplies on demand.

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A demonstration of the first 3D printer in space was tested on the space station in 2014, proving it worked in microgravity. This paved the way for the first commercial 3D printer in space, which is operated by Made In Space. It has successfully produced more than 150 parts since its activation in 2016. Designs for tools, parts, and many other objects are transmitted to the station by the company, which also oversees the print jobs. Different kinds of plastic filaments use heat and pressure in a process that’s similar to the way a hot glue gun works. The molten material is precisely deposited using a back-and-forth motion until the part forms. The next logical step for efficient 3D printing was using recycled plastics to create needed objects.

4. The Nine Lives of Plastic

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To help fragile technology survive launch and keep food safe for consumption, NASA employs a lot of single-use plastics. That material is a valuable resource, so we are developing a number of ways to repurpose it. The Refabricator, delivered to the station in 2018, is designed to reuse everything from plastic bags to packing foam. The waste plastic is super-heated and transformed into the feedstock for its built-in 3D printer. The filament can be used repeatedly: a 3D-printed wrench that’s no longer needed can be dropped into the machine and used to make any one of the pre-programmed objects, such as a spoon. The dorm-fridge-sized machine created by Tethers Unlimited Inc. successfully manufactured its first object, but the technology experienced some issues in the bonding process likely due to microgravity’s effect on the materials. Thus, the Refabricator continues to undergo additional testing to perfect its performance.

5. Speed Metal

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An upcoming hardware test on the station will try out a new kind of 3D printer. The on-demand digital manufacturing technology is capable of using different kinds of materials, including plastic and metals, to create new parts. We commissioned TechShot Inc. to build the hardware to fabricate objects made from aerospace-grade metals and electronics. On Earth, FabLab has already demonstrated its ability to manufacture strong, complex metal tools and other items. The unit includes a metal additive manufacturing process, furnace, and endmill for post-processing. It also has built-in monitoring for in-process inspection. When the FabLab is installed on the space station, it will be remotely operated by controllers on Earth. Right now, another printer created by the same company is doing a different kind of 3D printing on station.

6. A Doctor’s BFF

Today scientists are also learning to 3D print living tissues. However, the force of gravity on this planet makes it hard to print cells that maintain their shape. So on Earth, scientists use scaffolding to help keep the printed structures from collapsing.

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The 3D BioFabrication Facility (BFF) created by TechShot Inc. could provide researchers a gamechanger that sidesteps the need to use scaffolds by bioprinting in microgravity. This first American bioprinter in space uses bio-inks that contain adult human cells along with a cell-culturing system to strengthen the tissue over time. Eventually, that means that these manufactured tissues will keep their shape once returned to Earth’s gravity! While the road to bioprinting human organs is likely still many years away, these efforts on the space station may move us closer to that much-needed capability for the more than 100,000 people on the wait list for organ transplant.

7. Growing Vitamins

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Conditions in space are hard on the human body, and they also can be punishing on food. Regular deliveries of food to the space station refresh the supply of nutritious meals for astronauts. But prepackaged food stored on the Moon or sent to Mars in advance of astronauts could lose some nutritional value over time.

That’s why the BioNutrients experiment is underway. Two different strains of baker’s yeast which are engineered to produce essential nutrients on demand are being checked for shelf life in orbit. Samples of the yeast are being stored at room temperature aboard the space station and then are activated at different intervals, frozen, and returned to Earth for evaluation. These tests will allow scientists to check how long their specially-engineered microbes can be stored on the shelf, while still supplying fresh nutrients that humans need to stay healthy in space. Such microbes must be able to be stored for months, even years, to support the longer durations of exploration missions. If successful, these space-adapted organisms could also be engineered for the potential production of medicines. Similar organisms used in this system could provide fresh foods like yogurt or kefir on demand. Although designed for space, this system also could help provide nutrition for people in remote areas of our planet.

8. Rough and Ready

Everything from paints and container seals to switches and thermal protection systems must withstand the punishing environment of space. Atomic oxygen, charged-particle radiation, collisions with meteoroids and space debris, and temperature extremes (all combined with the vacuum) are just some conditions that are only found in space. Not all of these can be replicated on Earth. In 2001, we addressed this testing problem with the Materials International Space Station Experiment (MISSE). Technologists can send small samples of just about any technology or material into low-Earth orbit for six months or more. Mounted to the exterior of the space station, MISSE has tested more than 4,000 materials. More sophisticated hardware developed over time now supports automatic monitoring that sends photos and data back to researchers on Earth. Renamed the MISSE Flight Facility, this permanent external platform is now owned and operated by the small business, Alpha Space Test & Research Alliance LLC. The woman-owned company is developing two similar platforms for testing materials and technologies on the lunar surface.

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9. Parachuting to Earth

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Small satellites could provide a cheaper, faster way to deliver small payloads to Earth from the space station. To do just that, the Technology Education Satellite, or TechEdSat, develops the essential technologies with a series of CubeSats built by college students in partnership with NASA. In 2017, TechEdSat-6 deployed from the station, equipped with a custom-built parachute called exo-brake to see if a controlled de-orbit was possible. After popping out of the back of the CubeSat, struts and flexible cords warped the parachute like a wing to control the direction in which it travelled. The exo-brake uses atmospheric drag to steer a small satellite toward a designated landing site. The most recent mission in the series, TechEdSat-10, was deployed from the station in July with an improved version of an exo-brake. The CubeSat is actively being navigated to the target entry point in the vicinity of the NASA’s Wallops Flight Facility on Wallops Island, Virginia.

10. X-ray Vision for a Galactic Position System

Independent navigation for spacecraft in deep space is challenging because objects move rapidly and the distances between are measured in millions of miles, not the mere thousands of miles we’re used to on Earth. From a mission perched on the outside of the station, we were able to prove that X-rays from pulsars could be helpful. A number of spinning neutron stars consistently emit pulsating beams of X-rays, like the rotating beacon of a lighthouse. Because the rapid pulsations of light are extremely regular, they can provide the precise timing required to measure distances.

The Station Explorer for X-Ray Timing and Navigation (SEXTANT) demonstration conducted on the space station in 2017 successfully measured pulsar data and used navigation algorithms to locate the station as it moved in its orbit. The washing machine-sized hardware, which also produced new neutron star science via the Neutron star Interior Composition Explorer (NICER), can now be miniaturized to develop detectors and other hardware to make pulsar-based navigation available for use on future spacecraft.

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As NASA continues to identify challenges and problems for upcoming deep space missions such as Artemis, human on Mars, and exploring distant moons such as Titan, STMD will continue to further technology development on the space station and Earth.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

4 years ago

El Observatorio Abbey Ridge de Dave Lane tomó este video del asteroide (99942) Apophis mientras "pasaba zumbando" por la Tierra.

Aunque la aparición de 2021 no está muy cerca de la Tierra (Aprox. a 44 distancias lunares), el Asteoide Apophis es de particular interés porque en 2029 se acercará a unos ~40.000 km.

Las exposiciones fueron de 20 segundos durante aproximadamente 30 minutos. El asteroide es la "estrella" en movimiento cerca del centro del video.

Crédito: Dave Lane

Abbey Ridge Observatory

www.abbeyridgeobservatory.ca

El Observatorio Abbey Ridge De Dave Lane Tomó Este Video Del Asteroide (99942) Apophis Mientras "pasaba

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4 years ago

Gran conjunción Júpiter y Saturno desde Buraq, UAE

Crédito: Prabhu S Kutti

Instagram.com/prabhuskutti/

www.prabhuastrophotography.com

Gran Conjunción Júpiter Y Saturno Desde Buraq, UAE

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3 years ago

Encontrar ruinas y obtener fotografías junto a las estrellas es algo fantástico. Villacreces, Castilla y León, España. Villacreces fue el primer despoblado del siglo XX en Tierra de Campos.

La estructura que podemos ver en el centro es la Torre mudéjar.

Crédito: Marcos Alonso

https://instagram.com/elpiratilla

~Antares

Encontrar Ruinas Y Obtener Fotografías Junto A Las Estrellas Es Algo Fantástico. Villacreces, Castilla

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4 years ago

Rocket Launches and Rising Seas

At NASA, we’re not immune to effects of climate change. The seas are rising at NASA coastal centers – the direct result of warming global temperatures caused by human activity. Several of our centers and facilities were built near the coast, where there aren’t as many neighbors, as a safety precaution. But now the tides have turned and as sea levels rise, these facilities are at greater risk of flooding and storms.

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Global sea level is increasing every year by 3.3 millimeters, or just over an eighth of an inch, and the rate of rise is speeding up over time. The centers within range of rising waters are taking various approaches to protect against future damage.

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Kennedy Space Center in Florida is the home of historic launchpad 39A, where Apollo astronauts first lifted off for their journey to the Moon. The launchpad is expected to flood periodically from now on.

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Like Kennedy, Wallops Flight Facility on Wallops Island, Virginia has its launchpads and buildings within a few hundred feet of the Atlantic Ocean. Both locations have resorted to replenishing the beaches with sand as a natural barrier to the sea.

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Native vegetation is planted to help hold the sand in place, but it needs to be replenished every few years.

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At the Langley Research Center in Hampton, Virginia, instead of building up the ground, we’re hardening buildings and moving operations to less flood-prone elevations. The center is bounded by two rivers and the Chesapeake Bay.

The effects of sea level rise extend far beyond flooding during high tides. Higher seas can drive larger and more intense storm surges – the waves of water brought by tropical storms.

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In 2017, Hurricane Harvey brought flooding to the astronaut training facility at Johnson Space Center in Houston, Texas. Now we have installed flood resistant doors, increased water intake systems, and raised guard shacks to prevent interruptions to operations, which include astronaut training and mission control.

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Our only facility that sits below sea level already is Michoud Assembly Facility in New Orleans. Onsite pumping systems protected the 43-acre building, which has housed Saturn rockets and the Space Launch System, from Hurricane Katrina. Since then, we’ve reinforced the pumping system so it can now handle double the water capacity.

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Ames Research Center in Silicon Valley is going one step farther and gradually relocating farther south and to several feet higher in elevation to avoid the rising waters of the San Francisco Bay.

Understanding how fast and where seas will rise is crucial to adapting our lives to our changing planet.

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We have a long-standing history of tracking sea level rise, through satellites like the TOPEX-Poseidon and the Jason series, working alongside partner agencies from the United States and other countries.

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We just launched the Sentinel-6 Michael Freilich satellite—a U.S.-European partnership—which will use electromagnetic signals bouncing off Earth’s surface to make some of the most accurate measurements of sea levels to date.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.

3 years ago
Dark Energy

Dark Energy

This bone-chilling force will leave you shivering alone in terror! An unseen power is prowling throughout the cosmos, driving the universe to expand at a quickening rate. This relentless pressure, called dark energy, is nothing like dark matter, that mysterious material revealed only by its gravitational pull. Dark energy offers a bigger fright: pushing galaxies farther apart over trillions of years, leaving the universe to an inescapable, freezing death in the pitch black expanse of outer space. Download this free poster in English and Spanish and check out the full Galaxy of Horrors.

Make sure to follow us on Tumblr for your regular dose of space!

4 years ago

Un analema es esa curva en forma de 8 que se obtiene cuando se marca la posición del Sol a la misma hora todos los días durante un año.

Pero el truco para obtener imágenes de un analema de la Luna es esperar un poco más. En promedio, la Luna vuelve a la misma posición en el cielo unos 50 minutos y 29 segundos más tarde cada día. Así que se fotografió la Luna 50 minutos y 29 segundos más tarde en días sucesivos.

Durante una lunación o mes lunar, trazará una curva similar a un analema a medida que la posición real de la Luna se desvía debido a su órbita inclinada y elíptica. Para crear esta imagen compuesta de un analema lunar, el astrónomo Gyorgy Soponyai eligió un mes lunar del 26 de marzo al 18 de abril del 2020 con un buen tiempo y un sitio cerca de casa cerca de Mogyorod, Hungría.

Crédito: Gyorgy Soponyai

Un Analema Es Esa Curva En Forma De 8 Que Se Obtiene Cuando Se Marca La Posición Del Sol A La Misma

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4 years ago

Una imagen compuesta de la subida de la Luna llena el 29 de diciembre de 2020 en una tarde muy clara del cielo crepúsculo, aquí sobre las Badlands del Parque Provincial Dinosaur, Alberta. Esta es una mezcla en capas de 13 exposiciones tomadas a intervalos de 5 minutos, desde la salida de la luna justo antes de la puesta del sol, hasta la altura de la luna en un cielo oscuro más de una hora después. El suelo y el cielo cerca del horizonte es una mezcla de las primeras cuatro exposiciones, mientras que el cielo superior es de las dos últimas exposiciones para colocar la luna ahora brillante en un cielo más oscuro como realmente apareció. La Luna mueve su propio diámetro en unos 2 minutos, por lo que las tomas tomadas con 5 minutos de diferencia proporcionan un buen espacio para un disparo con este campo de vista. Estos marcos fueron tomados como parte de un lapso de tiempo de 800 marcos con la cámara en la exposición automática para asegurar que cada marco estuviera bien expuesto para el suelo y el cielo. Pero a medida que la luna ilumina mientras se levanta, inevitablemente sobreexpone el disco de la Luna - la secuencia de exposición que utilizo aquí funciona para el time-lapse pero no es tan ideal para una imagen compuesta como esta. Si hubiera querido que se tomara esto solo para un compuesto de imágenes quietas, habría tenido que arreglar la exposición a más o menos lo que era a mitad de secuencia aquí, para mantener el disco lunar en ese brillo y detalle. ¡Que así sea! Todos estaban con la lente de Rokinon 85 mm y Canon 6 D Mklll a ISO 100.

Crédito: Alan Dyer

https://www.amazingsky.com/

Una Imagen Compuesta De La Subida De La Luna Llena El 29 De Diciembre De 2020 En Una Tarde Muy Clara

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3 years ago

Vía Láctea en Isla Mujeres.

Esta isla se encuentra en el mar Caribe a 13 kilómetros de la ciudad de Cancún, el cual es el principal centro turística de la región.

Crédito: Robert Fedez

https://instagram.com/robert_fedez

~Antares

Vía Láctea En Isla Mujeres.

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4 years ago

Dreaming of going to space? – Astronaut Victor Glover has you covered. 

In his first video from space, take a look at our home through the window of SpaceX’s Crew Dragon “Resilience” spacecraft. Victor arrived to the International Space Station alongside his fellow Crew-1 astronauts on Nov. 16, 2020. 

This is his first trip to space and his first mission on the orbital lab! 

Follow his Instagram account HERE to stay up-to-date on station life and for more behind-the-scenes content like this. 

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.

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Glaretum fundado en el 2015 con el objetivo de divulgar la ciencia a través de la Astronomía hasta convertirnos en una fuente de conocimiento científico veraz siendo garantía de información seria y actualizada.

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