Category Archive : Cosmos

[Action requise] Votre essai RSS.app a expiré – Lun 23 novembre 2020

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J’ai essayé plusieurs générateurs de flux RSS et celui qui fonctionnait le mieux, en plus d’être le plus simple, était RSS.app. C’est formidable à quel point l’outil peut être utile pour quelqu’un qui ne sait pas coder. ( IFTTT, Zapier, etc.), c’est le premier qui est très simple et qui fonctionne hors de la boîte.

Isaac Halvorson iOS developer

Isaac Halvorson

Développeur iOS hisaac

[Action requise] Votre essai RSS.app a expiré – Sam 14 novembre 2020

quote

J’ai essayé plusieurs générateurs de flux RSS et celui qui fonctionnait le mieux, en plus d’être le plus simple, était RSS.app. C’est formidable à quel point l’outil peut être utile pour quelqu’un qui ne sait pas coder. ( IFTTT, Zapier, etc.), c’est le premier qui est très simple et qui fonctionne hors de la boîte.

Isaac Halvorson iOS developer

Isaac Halvorson

Développeur iOS hisaac

[Action required] Your RSS.app Trial has Expired – Wed Nov 04 2020

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I tried several RSS feed generators and the one that worked best, aside from being the simplest, was RSS.app. It’s great how useful the tool can be for somebody that doesn’t know how to code.

kirll from st6
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I’ve long wanted an app that generates RSS feeds from social media sites, and while there are other options that do it (IFTTT, Zapier, etc.), this is the first one that is dead simple, and works out of the box.

Isaac Halvorson iOS developer

Isaac Halvorson

iOS Developerhisaac

[Action requise] Votre essai RSS.app a expiré – Mer 21 octobre 2020

quote

J’ai essayé plusieurs générateurs de flux RSS et celui qui fonctionnait le mieux, en plus d’être le plus simple, était RSS.app. C’est formidable à quel point l’outil peut être utile pour quelqu’un qui ne sait pas coder. ( IFTTT, Zapier, etc.), c’est le premier qui est complètement simple et qui fonctionne hors de la boîte.

Isaac Halvorson iOS developer

Isaac Halvorson

Développeur iOS hisaac

[Action requise] Votre essai RSS.app a expiré – Sam 17 octobre 2020

quote

J’ai essayé plusieurs générateurs de flux RSS et celui qui fonctionnait le mieux, en plus d’être le plus simple, était RSS.app. C’est formidable à quel point l’outil peut être utile pour quelqu’un qui ne sait pas coder. ( IFTTT, Zapier, etc.), c’est le premier qui est complètement simple et qui fonctionne hors de la boîte.

Isaac Halvorson iOS developer

Isaac Halvorson

Développeur iOS hisaac

Elon Musk ‘guesses’ SpaceX could send its next-gen Starship to Mars as soon as 2024

If you want to go to Mars, timing is everything, and Elon Musk no longer thinks SpaceX will make it to the red planet when the next window of opportunity opens up in 2022. 

The world’s leading fan of leaving this world had previously hoped to send a robotic mission to Mars in 2022, followed by a crewed trip a couple of years later. During an interview at the Mars Society virtual convention on Friday, Musk said he now thinks his next-generation Starship spacecraft could be ready as soon as 2023, in time for a launch window in 2024.

The orbits of Earth and Mars around the sun bring the two planets closest to each other roughly every two years. That’s why we saw three robotic missions to our neighboring world, including NASA’s Perseverance rover, launch within weeks of each other in July. 

“I think we’ve got a fighting chance,” Musk said of making the 2024 Mars transport window. 

To get there, though, Musk says his team will need to pick up its pace of innovation and he isn’t afraid to break a few things along the way.

“We’ll probably lose a few ships,” he said when asked about the development process for Starship, which is designed to eventually take dozens of people at a time to Mars.

So far, early Starship prototypes have made short, low-altitude “hops” from the SpaceX test facility in Texas. Musk hopes the early models will make it to orbit for the first time next year.  He added that the company could demonstrate refueling capability in orbit in 2022 and begin making trips to the moon shortly after that.

The company’s founder and chief engineer cautioned that he has no secret dates for achieving these milestones. 

“These are just guesses,” Musk told Mars Society President Robert Zubrin over Zoom. 


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As for who’ll get to go to Mars, Musk said that once there are a million people who both want to go to the red planet and can afford it, that should be enough to sustain a city. So in other words, it seems the first martians are likely to be wealthy earthlings. 

Once on Mars, Musk said, the first order of business will be setting up a propellant plant. He also mentioned the idea of sending robotic droids to the surface that people could control remotely from Earth. 

Naturally, Musk also has designs on more than Mars. He mentioned the idea of using Starship or other craft to visit the suddenly exciting atmosphere of Venus, large asteroids, the moons of Jupiter and even the Kuiper Belt and furthest reaches of the solar system.

“We need to make the leap of going to another planet first,” he said.   

Live coverage: SpaceX rolls out Falcon 9 rocket for another Starlink launch

Live coverage of the countdown and launch of a SpaceX Falcon 9 rocket from pad 39A at NASA’s Kennedy Space Center in Florida. The mission will launch SpaceX’s 14th batch of approximately 60 Starlink broadband satellites. Text updates will appear automatically below. Follow us on Twitter.

Spaceflight Now members can watch a live view of the Falcon 9 rocket on launch pad 39A.

Elon Musk says SpaceX’s 1st Starship trip to Mars could fly in 4 years

SpaceX is almost ready to start building a permanent human settlement on Mars with its massive Starship rocket.

The private spaceflight company is on track to launch its first uncrewed mission to Mars in as little as four years from now, SpaceX’s founder and CEO Elon Musk said Friday (Oct. 16) at the International Mars Society Convention

“I think we have a fighting chance of making that second Mars transfer window,” Musk said in a discussion with Mars Society founder Robert Zubrin. You can watch a replay of the talk here.

That window Musk referred to is a launch opportunity that arises every 26 months for mission to Mars. NASA, China and the United Arab Emirates all launched missions to mars in July of this year. The next window opens in 2022 with Musk referring to the 2024 Mars launch opportunity. 

The mission will launch to the Red Planet on a SpaceX Starship vehicle, a reusable rocket-and-spacecraft combo that is currently under development at the company’s South Texas facility. SpaceX is also planning to use Starship for missions to the moon starting in 2022, as well as point-to-point trips around the Earth.

Related: Starship and Super Heavy: SpaceX’s Mars-colonizing vehicles in images

Musk has long said that humans need to establish a permanent and self-sustaining presence on Mars to ensure “the continuance of consciousness as we know it” — just in case planet Earth is left uninhabitable by a something like a nuclear war or an asteroid strike. 

But SpaceX doesn’t have any plans to actually build a Mars base. As a transportation company, its only goal is to ferry cargo (and humans) to and from the Red Planet, facilitating the development of someone else’s Mars base.

“SpaceX is taking on the biggest single challenge, which is the transportation system. There’s all sorts of other systems that are going to be needed,” Mars Society founder Robert Zubrin said during the convention. 

“My personal hope is that we’re gonna see Starship in the stratosphere before this year’s out, and if Elon is right, reach orbit next year or the year after,” Zubrin added. “This will change people’s minds as to what is possible. And then, you know, we’ll have NASA seeking to fund the remaining pieces of the puzzle or entrepreneurs stepping forward to develop remaining pieces of the puzzle.”

This SpaceX infographic shows how the company aims to use its Starship interstellar spacecraft to transport humans and cargo to and from the Red Planet.  (Image credit: SpaceX)

If Musk’s projections are correct — he is known for offering overly ambitious timelines — SpaceX’s first Mars mission would launch in the same year that NASA astronauts return to the moon under the Artemis program. SpaceX is also planning to fly space tourists on a Starship mission around the moon in 2023. NASA has also picked SpaceX as one of three commercial teams to develop moon landers for the Artemis program.

Musk said Friday that if it weren’t for the orbital mechanics that call for Mars launches every 26 months, SpaceX “would maybe have a shot of sending or trying send something to Mars in three years,” Musk said, adding that Earth and Mars won’t be in the best position. “But the window is four years away, because of them being in different parts of the solar system.”

Musk unveiled plans for SpaceX’s Starship plans in 2016. The project aims to launch a 165-foot (50 meters) spacecraft atop a massive booster for deep-space missions to the moon, Mars and elsewhere. Both the Starship and its Super Heavy booster will be reusable. 

This year, SpaceX launched two test flights of Starship prototypes, called SN5 and SN6, from its Boca Chica test site in Texas. Those flights reached an altitude of 500 feet (150 meters). 

SpaceX is currently preparing another Starship prototype, called SN8, for a 12-mile-high (20 kilometers) test flight in the near future. 

Email Hanneke Weitering at hweitering@space.com or follow her on Twitter @hannekescience. Follow us on Twitter @Spacedotcom and on Facebook.

Two high-speed pieces of space junk narrowly missed a big collision

A dead Soviet satellite and an abandoned Chinese rocket body have crashed into each other rapidly in space this week, but were far from a catastrophic accident on Thursday night.

Leo Labs, a company that uses radar Track satellites and debris In space, Said On Tuesday it said it was monitoring a “very high-risk” conjunction – an intersection of two objects’ orbits around Earth.

The company used its radar array to monitor every two objects when it crossed the overhead three or four times a day from Friday.

Data indicate that two large pieces of space junk are missing from each other 8 to 43 meters (26 to 141 feet) Thursday night at 8:56 p.m.

On Wednesday, when the estimated miss distance was just 12 meters (19 feet), Leo Labs calculated a 10 percent chance of hitting objects.

It may seem trivial, but NASA normally moves the International Space Station when the orbiting laboratory is only 0.001 percent (1 in 100,000) more likely to encounter iding with an object.

Since both the Soviet satellite and the Chinese rocket body were not working, no one could move them out of each other. The astronomer said that if they were ide, an explosion equivalent to the explosion of 14 metric tons of TNT would send rockets of debris in all directions. Jonathan McDowell.

10 minutes after the fusion, when the rocket body flew over Leo Labs radar, there was only one object – the company tweeted that “there were no signs of debris”.

“Bullet Dodge,” McDowell Said On Twitter. “But space debris is still a big problem.”

The collision may not have endangered anyone on Earth, as the satellites are 991 kilometers (616 miles) from Earth and cross the Antarctic Ocean over the Veddel Sea. But as a result thousands of spacecraft fragments were dangerous in Earth’s orbit.

Experts at Aerospace Corporation have calculated very few collisions: 1 in just 23 billion by Thursday morning, with objects estimated to miss 70 meters (230 feet) from each other.

“The space-wreck community is constantly alerting us to these close policies, and we are not lying or lying about it,” Ted Mulhapt, who oversees The Aerospace Corporation’s space-wreck analysis, told Business Insider.

“Any of them is a low probability event, because the space is still very large. But when you take these items and combine them, sooner or later you’ll see the rewards. It’s time for us to go through another big collision with our models.”

Space collisions make clouds of dangerous high-speed debris

Nearly 130 million bits of space junk Currently orbiting the Earth, from abandoned satellites, detached spaceship and other missions. Those debris travel at about 10 times the speed of a bullet, which is fast enough to cause deadly damage to important equipment no matter how small the pieces.

Such a hit can kill astronauts on a spaceship.

The problem is exacerbated when collisions between space junk pieces cause objects to disintegrate into smaller pieces.

“Every time there is a big conflict, it’s a big change in LEO [low-Earth orbit] Environment, ”Dan Sepperley, CEO of Leo Labs Previously told Business Insider.

Two events in 2007 and 2009 increased the size of large debris in low Earth orbit 70 percent.

The first was the China test of an anti-satellite missile, in which China fired one of its own weather satellites. Two years later, an American spacecraft accidentally hit a Russian.

“Because of that, there’s a debris belt now,” Sepperley said.

India conducted its own satellite missile test in 2019, and that explosion created a prediction 6,500 ruins Larger than the eraser.

The satellite fired by India has a mass of less than one metric ton.

Combined, the Soviet satellite and the Chinese rocket body that cared for each other weighed nearly three metric tons (2,800 kilograms). Depending on those large volumes, the collision could create a significant cloud of hazardous debris.

High-risk satellite combinations are becoming more common

This is not the first time Leo Labs has warned the world about the possibility of a high-risk satellite merger. In January, the company calculated Collision between Dead Space Telescope and old US Air Force satellite.

Objects did not crash, but Seperley said the two satellites were “canceled, so basically no one was keeping an eye on them.”

The U.S. Air Force, which tracks satellites for the government, did not inform NASA about the potential collision, the space agency told Business Insider at the time.

Expert warnings about space junk grew even more urgent from that miss.

“We have recently determined the number of combinations,” Dan Oltrog, an astronomer, told Business Insider, which researched orbital debris at Analytical Graphics, Inc.

Oltrose uses a software system that has been collecting and estimating conjunction data for the past 15 years. In recent times in orbital encounters, he says, “seems to be well-connected with the newly launched large-star cluster spacecraft.”

The largest constellations he represents are Internet satellite clusters, which companies like SpaceX, Amazon and OneWeb plan to launch. In total, the companies plan to launch more than 100,000 satellites by the end of the decade. Since May 2019, SpaceX has already launched nearly 800 new satellites into Earth orbit.

The catastrophe of wreckage can reduce our access to space

If the space-junk problem is exacerbated, the chain of collisions will get out of control and surround the Earth in an impassable field of debris. Donald J. Snyder, who worked at NASA’s Johnson Space Center and calculated in a 1978 paper.

“It’s a long-term impact that will last for decades and centuries,” Mulhapt said Told Business Insider In January. “Anything that does a lot of debris increases that risk.”

The number of objects in Earth’s orbit could already have a Kessler-like effect – a risk described last week by Rocket Lab CEO Peter Beck.

“It will have a huge impact on the launch side,” he said Told CNN Business, Rockets “should try and weave between these [satellite] Constellations. “

This article was originally published Business Insider.

More from Business Insider:

One player infected 14 others during recreational hockey game in Tampa Bay area, report shows

A recreational hockey game played at a Tampa Bay area rink is to blame for a COVID-19 outbreak. It happened back in June, but was detailed in a report released this week by the CDC.

Ice hockey is fast-paced, highly physical, with lots of close contact — the perfect environment for spreading the coronavirus hotspot.

“You’re likely to spread the virus just by the heavy breathing that you’re doing just by exerting yourself,” explained University of South Florida professor of public health, Dr. Marissa Levine. “All of that being indoors then made that more likely as a potential for a superspreader event.”

The term super-spreader means when one contagious person infects many others.

According to the report from the CDC, that is exactly what happened at a Tampa Bay area hockey game on a Tuesday night back in June.

RELATED: ‘You may have to bite the bullet’: Dr. Fauci cautions against large Thanksgiving gatherings

“We don’t really know who the super-spreaders are, this person who was infected was a super-spreader but they didn’t really feel sick until the next day,” USF Health Dr. Michael Teng said.

Health officials believe that one man was the source, already contagious but not showing symptoms. Within five days of the match-up, eight of his teammates, five players on the other team, and one rink employee all got sick.

A situation that could have contributed to widespread community transmission of COVID-19.

RELATED: COVID-19 virus can survive for up to 28 days on common surfaces, study finds

“They don’t actually say that it spread beyond that, so what that means is they went in there did contact tracing very quickly and were able to determine who was positive,” said Teng.

The report is co-authored by Department of Health Epidemiologists in Hillsborough and Pinellas Counties, so it is unclear where the outbreak occurred.

Local medical experts say the main takeaway should be how easily this virus spreads when people are in close proximity.

RELATED: Canadian border may stay closed if US coronavirus cases don’t go down

“I think as we learn more we realize that bottom line is you have to take precautions in most settings that you’re in when there are other people around,” Levine said.

Health officials say we are entering a very critical time with flu season starting and new coronavirus infections trending up in the state, so it is more important than ever to stay at least six feet from others, wear face coverings, and wash your hands.