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Maintenant, c’est au tour du vol de retour de la capsule Starliner de Boeing d’être repoussé
news.movim.eu / Numerama • 15 June, 2024
Le vol de retour du Starliner était d'abord planifié pour le 14 juin, puis le 18. Maintenant, la capsule spatiale de Boeing est censée rentrer sur Terre le 22 juin.
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Retired engineer discovers 55-year-old bug in Lunar Lander computer game code
news.movim.eu / ArsTechnica • 14 June, 2024 • 1 minute
Enlarge / Illustration of the Apollo lunar lander Eagle over the Moon. (credit: Getty Images )
On Friday, a retired software engineer named Martin C. Martin announced that he recently discovered a bug in the original Lunar Lander computer game's physics code while tinkering with the software. Created by a 17-year-old high school student named Jim Storer in 1969, this primordial game rendered the action only as text status updates on a teletype , but it set the stage for future versions to come.
The legendary game—which Storer developed on a PDP-8 minicomputer in a programming language called FOCAL just months after Neil Armstrong and Buzz Aldrin made their historic moonwalks—allows players to control a lunar module's descent onto the Moon's surface. Players must carefully manage their fuel usage to achieve a gentle landing, making critical decisions every ten seconds to burn the right amount of fuel.
In 2009, just short of the 40th anniversary of the first Moon landing, I set out to find the author of the original Lunar Lander game, which was then primarily known as a graphical game, thanks to the graphical version from 1974 and a 1979 Atari arcade title . When I discovered that Storer created the oldest known version as a teletype game, I interviewed him and wrote up a history of the game . Storer later released the source code to the original game, written in FOCAL, on his website.
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Les astronautes devront revenir dans le Starliner alors que le vaisseau a désormais 5 fuites
news.movim.eu / Numerama • 14 June, 2024
La Nasa révèle que la capsule Starliner de Boeing a subi cinq fuites durant son vol vers la Station spatiale internationale. Le défi maintenant est de faire revenir les astronautes en sécurité sur Terre.
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La Nasa a ressuscité la sonde interstellaire Voyager 1
news.movim.eu / Numerama • 14 June, 2024
Tous les instruments scientifiques de Voyager 1 fonctionnent correctement. La Nasa vient enfin à bout du bug étrange qui a affecté la mission interstellaire pendant des mois.
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Une erreur de la Nasa a fait craindre un scénario cauchemar pour les astronautes
news.movim.eu / Numerama • 13 June, 2024
La Nasa a diffusé un son très inquiétant dans sa vidéo en direct de l'ISS. Le message indiquait qu'un astronaute était victime d'un accident de décompression. Il s'agissait en fait d'une erreur.
Nasa says no emergency on board ISS after ‘disturbing’ medical drill accidentally airs
news.movim.eu / TheGuardian • 13 June, 2024
A Nasa livestream from the International Space Station inadvertently aired an ongoing simulation, briefly sparking concern for the crew
Nasa has been forced to deny that there was an emergency situation on board the International Space Station (ISS), after an official livestream accidentally aired a medical drill which simulated a crew member in extreme medical distress, prompting alarm on social media.
“There is no emergency situation going on aboard the International Space Station,” Nasa’s ISS account posted on X. “Audio was inadvertently misrouted from an ongoing simulation where crew members and ground teams train for various scenarios in space.”
Continue reading...
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Trash from the International Space Station may have hit a house in Florida
news.movim.eu / ArsTechnica • 2 April, 2024
Enlarge / This cylindrical object, a few inches in size, fell through the roof of Alejandro Otero's home in Florida last month. (credit: Alejandro Otero on X )
A few weeks ago, something from the heavens came crashing through the roof of Alejandro Otero's home, and NASA is on the case.
In all likelihood, this nearly two-pound object came from the International Space Station. Otero said it tore through the roof and both floors of his two-story house in Naples, Florida.
Otero wasn't home at the time, but his son was there. A Nest home security camera captured the sound of the crash at 2:34 pm local time (19:34 UTC) on March 8. That's an important piece of information because it is a close match for the time—2:29 pm EST (19:29 UTC)—that US Space Command recorded the reentry of a piece of space debris from the space station. At that time, the object was on a path over the Gulf of Mexico, heading toward southwest Florida.
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After the Concorde, a long road back to supersonic air travel
news.movim.eu / ArsTechnica • 29 March, 2024
Enlarge / NASA's and Lockheed Martin's X-59 experimental supersonic jet is unveiled during a ceremony in Palmdale, California, on January 12, 2024. (credit: Robyn Beck/AFP via Getty Images)
When Chuck Yeager reached Mach 1 on October 14, 1947, the entire frame of his Bell X-1 aircraft suddenly started to shake, and the controls went. A crew observing the flight in a van on the ground reported hearing something like a distant, rolling thunder. They were probably the first people on Earth to hear a boom made by a supersonic aircraft.
The boom felt like an innocent curiosity at first but soon turned into a nightmare. In no time, supersonic jets—F-100 Super Sabers, F-101 Voodoos, and B-58 Hustlers—came to Air Force bases across the US, and with them came the booms. Proper, panes-flying-off-the windows supersonic booms. People filed over 40,000 complaints about nuisance and property damage caused by booming jets, which eventually ended up with the Federal Aviation Administration imposing a Mach 1 speed limit for flights over land in 1973.
Now, NASA wants this ban to go. It has started the Quesst mission to go fast over American cities once more. But this time, it wants to do it quietly.
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Government watchdog says first Artemis lunar landing may slip to 2027
news.movim.eu / ArsTechnica • 4 December, 2023
Enlarge / A crescent Earth rises over the horizon of the Moon in this view from NASA's Orion spacecraft on the unpiloted Artemis I test flight in December 2022. (credit: NASA )
A new report from the Government Accountability Office suggests NASA's Artemis III mission, which aims to return humans to the Moon's surface for the first time in more than 50 years, could be delayed from late 2025 until 2027.
The readiness of SpaceX's human-rated lander and new commercial spacesuits developed by Axiom Space are driving the schedule for Artemis III. Both contractors have a lot of work to do before the Artemis III landing, and the government watchdog's report said delays with SpaceX's Starship program and design challenges with Axiom's spacesuits threaten NASA's schedule.
"NASA and its contractors have made progress, including completing several important milestones, but they still face multiple challenges with development of the human landing system and the space suits," the GAO said in a report published Thursday . "As a result, GAO found that the Artemis III crewed lunar landing is unlikely to occur in 2025."
