Tag • #nasa

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This software aims to make your flight smoother—and help the planet

WIRED · news.movim.eu / ArsTechnica · Saturday, 2 October, 2021 - 11:40

So many airplanes are in line on the runway waiting for take off. These Air Force planes are part of Operation stop service to transport in Covid-19 situation.

Enlarge / So many airplanes are in line on the runway waiting for take off. These Air Force planes are part of Operation stop service to transport in Covid-19 situation. (credit: Naruecha Jenthaisong | Getty Images)

Fastening the seat belt buckle and knowing your flight is on its way to its destination: Nice. Getting stuck in a tarmac traffic jam and waiting for your flight to take off: Not so nice. Turns out the wait is also not nice for the planet.

Flying in an airplane is already one of the most emissions-intensive things you can do. Globally, aviation produced over 1 billion tons of carbon emissions in 2019 , more than 2 percent of all human-generated emissions—more than either shipping or rail. Aircraft engines also emit nitrogen oxides, soot particles, and water vapor, which also contribute to warming the planet.

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NASA’s SLS rocket will not fly until next spring, or more likely summer

Eric Berger · news.movim.eu / ArsTechnica · Tuesday, 31 August, 2021 - 13:07 · 1 minute

Enlarge / The launch vehicle stage adapter for NASA’s Space Launch System rocket is integrated with the core stage in June. (credit: NASA)

Publicly NASA is still holding onto the possibility of a 2021 launch date for the debut flight of its Space Launch System rocket. This week, an agency spokesperson told Ars that "NASA is working toward a launch for the Artemis I mission by the end of this year."

However, a source said the best-case scenario for launching the Artemis 1 mission is spring of next year, with summer the more realistic target for a test flight of the heavy lift rocket and Orion spacecraft. The space agency is already running about two months behind internal targets for testing and integrating the rocket at Kennedy Space Center, and the critical pre-flight tests remain ahead.

NASA's Kathryn Hambleton acknowledged that the space agency has seen schedule slips. "The agency continues to monitor the rise of COVID cases in the Kennedy area, which combined with other factors such as weather and first time operations, is impacting our schedule of operations," she said. "Moving step by step, we are progressing toward launch while keeping our team as safe as possible."

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L’ESA et la Nasa vont coopérer davantage sur le péril des débris spatiaux

Julien Lausson · news.movim.eu / Numerama · Thursday, 26 August, 2021 - 14:10

Les agences spatiales européenne et américaine entendent travailler conjointement sur le péril que posent les débris en orbite autour de la Terre. [Lire la suite]

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L'article L’ESA et la Nasa vont coopérer davantage sur le péril des débris spatiaux est apparu en premier sur Numerama .

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Congress fires warning shot at NASA after SpaceX Moon lander award

Eric Berger · news.movim.eu / ArsTechnica · Thursday, 13 May, 2021 - 14:44

Committee Chair Sen. Maria Cantwell, D-Wash., listens to former US Sen. Bill Nelson, President Biden’s nominee to be the next administrator of NASA, on April 21, 2021.

Enlarge / Committee Chair Sen. Maria Cantwell, D-Wash., listens to former US Sen. Bill Nelson, President Biden’s nominee to be the next administrator of NASA, on April 21, 2021. (credit: NASA)

On Wednesday, a US senator added an amendment to unrelated science legislation that would impose significant restrictions on NASA and its plans to return to the Moon.

The amendment ( see document ) was spurred by NASA's decision in April to select SpaceX as its sole provider of a human landing system for the Artemis Program. Senator Maria Cantwell, a Democrat from the state of Washington, where Blue Origin is based, authored the legislation. Owned by Amazon founder Jeff Bezos, Blue Origin led a lunar lander bid that was rejected by NASA.

The US Senate Committee on Commerce, Science, and Transportation passed the amendment without any debate, adding the NASA changes to the Endless Frontier Act , a bill to keep US scientific and technology innovation competitive with China and other countries.

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Un processeur vieux de 20 ans suffit à Perseverance pour explorer Mars

Nelly Lesage · news.movim.eu / Numerama · Wednesday, 3 March, 2021 - 10:51

Toutes les technologies embarquées à bord du rover martien Perseverance ne sont pas forcément récentes. L'astromobile est ainsi équipé d'un processeur qui se trouvait déjà dans l'iMac G3 en 1998. Le composant est plébiscité par la Nasa pour sa fiabilité. [Lire la suite]

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L'article Un processeur vieux de 20 ans suffit à Perseverance pour explorer Mars est apparu en premier sur Numerama .

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Où est Perseverance ? Suivez la position du rover sur Mars avec cette carte

Nelly Lesage · news.movim.eu / Numerama · Friday, 19 February, 2021 - 15:56

Ça y est, Perseverance est bien posé sur Mars et a donné de ses nouvelles. Comment connaître sa position et sa future progression dans le cratère Jezero ? La Nasa met à disposition une carte pour suivre l'astromobile. [Lire la suite]

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L'article Où est Perseverance ? Suivez la position du rover sur Mars avec cette carte est apparu en premier sur Numerama .

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Pourquoi les premières images prises par Perseverance sur Mars sont-elles en noir et blanc ?

Nelly Lesage · news.movim.eu / Numerama · Friday, 19 February, 2021 - 10:51

Perseverance, l'astromobile de la Nasa, a réussi son atterrissage sur Mars le soir du 18 février 2021. Peu après, le rover a envoyé ses deux premières images de la planète rouge. Elles sont en noir et blanc : pourquoi ? [Lire la suite]

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L'article Pourquoi les premières images prises par Perseverance sur Mars sont-elles en noir et blanc ? est apparu en premier sur Numerama .

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Perseverance on Mars: Where it is, and what the next steps are

John Timmer · news.movim.eu / ArsTechnica · Friday, 19 February, 2021 - 00:57 · 1 minute

Enlarge / Perseverance has landed about two kilometers from a delta system, shown in the upper left of this image.

In their first press conference following Perseverance's successful landing on Mars, NASA and JPL scientists revealed some information on where the rover landed and what to expect for the next several days and weeks as it begins its mission in earnest.

Pics or it didn’t happen

One of the first orders of business is getting some of the images, audio, and video taken during the landing back to Earth. For now, doing so requires using a low gain antenna to transmit data to some of the hardware in orbit around Mars. Jennifer Trosper, the Deputy Project Manager for the rover said that the Mars Odyssey orbiter should have a brief pass overhead within the next few hours, followed by the Mars Trace Gas orbiter, which will have a longer overflight and grab larger amounts of data. Matt Wallace, another Deputy Project Manager, said that should be enough to allow NASA to release video of the landing on Monday.

Long term, however, communications will rely on a high-gain antenna that will allow direct communications with Earth. That will require pointing it, which means understanding the rover's current orientation on Mars' surface, which the team has inferred from the shadows cast in the first images sent down. Incidentally, those were taken with transparent lens caps on the Perseverance's navigation cameras, so we can expect better images once those are removed.

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Perseverance rover has landed safely on Mars

John Timmer · news.movim.eu / ArsTechnica · Thursday, 18 February, 2021 - 21:08

Perseverance rover has landed safely on Mars

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NASA's Perseverance rover has successfully landed on the surface of Mars, transmitting telemetry information and the first images of its landing site. A low-resolution driving camera image shows a field of dust-covered rocks, with the unmistakable shadow of the rover hardware. The images were so fresh that the dust kicked up by the landing was still settling in the early images.

The landing came at the end of a cruise through interplanetary space and a dive through the Martian atmosphere, as the rover and its rocket-supported crane shed parachutes, a heat shield, and a lot of speed. It culminated in the skycrane gently lowering the rover to the surface before rocketing off to land at a safe distance.

NASA refers to the landing protocol as "seven minutes of terror," due to its complicated, multi-stage nature , all of which is run under automated guidance. Adding to the tension, all of the outcomes will have already happened over 10 minutes ago by the time any indications of their success reaches Earth.

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