Satellites burning up in our atmosphere may not be as harmless as first thought

Business Insider, Marianne Guenot , Mar 2, 2024

• Spacecraft burning up in the atmosphere are leaving behind metal particles.
• Scientists are racing to understand if that affects the climate.
• One risk is that these particles may spark rainbow-colored clouds that damage the ozone layer.

Satellites and spacecraft burning up in our atmosphere are leaving metal particles in the stratosphere — and scientists are worried it could harm our planet.

About 10% of the particles floating around the stratosphere now come from the aerospace industry, and we don’t know if this could impact the climate.

One risk is that these new particles could seed polar stratospheric clouds, which are spectacular rainbow-colored clouds that can damage the ozone layer, experts told Business Insider.

“This is a good demonstration of how important it is to have the basic research on the stratosphere,” Daniel Murphy, a research scientist at the National Oceanic and Atmospheric Administration Chemical Science Lab, who led a survey of the particles, told BI.

“There is a whole phenomenon here that we didn’t expect out and we don’t fully understand the implications,” he said.

Stratospheric particles can shape the ozone layer

…..This crucial layer of the atmosphere, mostly contained in the stratosphere, protects us from ultraviolet radiation from the sun. It was frequently splashed across the headlines about 40 years ago when scientists raised the alarm about gaping holes growing over the poles made by chlorofluorocarbons (CFCs) rising up uncontrolled to the atmosphere…………………………………………………

Metal from satellites and spacecraft is vaporizing into the atmosphere

Murphy and his colleagues recently conducted a survey of the state of stratospheric particles over Alaska using a sensitive detector aboard NASA’s WB-57 high-altitude research plane.

The findings, published in the peer-reviewed journal PNAS in October 2023, revealed that about 10% of the stratospheric sulfuric acid particles they picked up could not be explained by natural causes………………………………………………………………………………………………………………………….

We’re realizing how little we know

With launch costs going down, the number of satellites orbiting the planet is only expected to grow to over 50,000 by 2030, up from about 8,000 now. Many of these satellites are expected to have a short lifetime.

“If you multiply those numbers out, a satellite will be reentering the atmosphere on average about once an hour,” said Murphy.

Within the next few decades, Murphy and his co-authors estimate aerospace debris could make up 50% of the particles in the stratosphere, which makes the need to understand what they do even more pressing.

Spacecraft decommissioning is only part of the equation, said Chipperfield.

“There’s an increasing number of rocket launches for small satellites and tourism, which burn kerosene or other fuels that emissions in the atmosphere. Then some satellites and orbit have fuel like iodine that can come back to the atmosphere. And then the demise,” he said………………………………………………………………………………. more https://www.businessinsider.com/satellites-burn-atmosphere-particles-stratosphere-climate-ozone-2024-2
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March 5, 2024 Posted by Christina Macpherson | space travel | Leave a comment

Get These Rich People Off the Moon.

Other than allowing billionaires and private companies to benefit from taxpayer-funded pipe dreams and advertising, the value of going to the moon for all mankind is not at all clear.

The US military has also expressed an interest in renting Starships for their Space Force cargo and troops — delivering war to poor countries anywhere in the world within one hour.

Despite the mess it makes on Earth, NewSpace investments are growing in popularity among everyman-for-himself superrich techies

BY PETER HOWSON,on behalf of Koohan Paik-Mander

Texas start-up Intuitive Machines has achieved the first moon landing by a private firm. It’s dumping rich people’s detritus on the lunar surface — a grim sign of how the superrich plan to plant their flag beyond our own planet.

Amid tears of joy at their Houston control room, the Texas start-up Intuitive Machines successfully landed on the moon. Their uncrewed lander, known as Odysseus, hitched a ride on a SpaceX rocket last week, touching down near the moon’s south pole on Thursday. After many failed attempts by various private outfits, Intuitive Machines is the first private company to plant a free-market flag on the moon

  In January, a different US private venture crashed back to Earth. Astrobotic’s Peregrine lander had been supposed to dispose of at least seventy dead rich people (and one rich dog) on the lunar surface.

Spending billions of dollars dumping odd things in space has become a tradition among the lunar classes. Elon Musk famously sent a Tesla Roadster as the dummy payload for the 2018 Falcon Heavy test flight. Driven by a mannequin in a spacesuit dubbed “Starman,” the car is now an enduring satellite of the sun. You can track him, if you like.

The Japanese isotonic drinks company Pocari Sweat has been trying to leave a can of pop on the moon since 2014. It finally crashed with Astrobotic’s failed $100 million lander. The Japanese still plan to send a hydrogen-powered Toyota “Lunar Cruiser” up there, despite a few explosive setbacks.

Toxic Effects

Other than allowing billionaires and private companies to benefit from taxpayer-funded pipe dreams and advertising, the value of going to the moon for all mankind is not at all clear. British astronaut Tim Peake suggests the microgravity up there might one day enable exotic treatments for all sorts of diseases, albeit expensive treatments for those who can afford them. Aside from body parts, fizzy pop, and “art,” the squillion-dollar landers are packed full of instruments designed for exploring the unknown, before anyone else gets their mitts on it.

So called “NewSpace” companies are on the prowl for profitable rare earth metals, helium-3, and water. Just like the spice of Arrakis, helium-3 is being pitched as “the most precious resource in the universe.” At least it might be if someone invents a use for it. Getting large quantities of water to space is pricey. A stable reservoir will keep plebs alive while they mine for spice. And both hydrogen and oxygen can make the rocket fuel needed to search for shiny things further afield.

It all sounds very exciting. But realizing these fantasies has costs for the rest of us. According to Atrium, a big insurer for rocket-makers, early space-faring outfits should typically expect 30 percent of their launches to end in catastrophic failure. When two separate SpaceX Starship launches in Texas went south last year, toxic particulates rained down on people’s homes. Debris broke windows and caused fires that burned across Boca Chica Park, home to endangered birds and ocelot cats.

“We never gave our consent,” said one indigenous Carrizo-Comecrudo representative at a SpaceX protest in South Texas. “Yet they [SpaceX] are moving forward. It’s colonial genocide of native people and native lands.” Bekah Hinojosa of the Texas environmental group Another Gulf Is Possible claims environmental deregulation, tax breaks, and subsidies have been used by the Texas state government to lure SpaceX in. Meanwhile local indigenous communities who rely on Boca Chica’s fish to feed their families feel their customary land is being sacrificed.

For the Navajo people, the costly blunders are no bad thing. The Navajo hold the moon to be sacred, and consider fly-tipping and mining there an act of profound desecration. According to the Navajo Nation’s president Dr Buu Nygren, “The sacredness of the Moon is deeply embedded in the spirituality and heritage of many Indigenous cultures, including our own.”

Wars on Our Home Planet

Yet, despite the mess they’re making, SpaceX plans on going bigger and bigger.

SpaceX will soon be moving its monster Starship boosters from Boca Chica to the much larger Kennedy Space Center in Florida. Like the Falcon 9, SpaceX’s Starship is designed as a workhorse for frequent, repeated flights. Instead of only a couple of launches per year, Kennedy will start to resemble an airport. The same powerful and destructive super heavy-lift rockets that devastated Boca Chica will be lifting off on a near daily basis from the Florida coast.

The US military has also expressed an interest in renting Starships for their Space Force cargo and troops — delivering war to poor countries anywhere in the world within one hour.

NewSpace is scaling up US geopolitical influence behind a facade of free-market competition. In Indonesia, SpaceX has edged out Beijing to become the country’s satellite launch partner of choice. The partnership was achieved through the personal relationship Musk nurtured with outgoing Indonesian president Joko Widodo. The deal marks a rare instance of a US company making inroads in Indonesia, whose telecommunications sector is dominated by Chinese outfits offering low costs and easy financing. Some see the SpaceX deal as just a sweetener for Musk to build a new Tesla factory somewhere in Indonesia. The electric vehicle-maker has so far signed contracts worth billions for Indonesia’s nickel and other essential materials for the company’s car batteries.

As well as ripping up Indonesia’s pristine forests for luxury car bits, plans to furnish Musk with a new spaceport on the island of Biak, Papua, is fermenting anger among indigenous Warbon peoples. Clearances for the spaceport are reigniting ethnic tensions and military violence. Somewhere between 40 and 150 Papuans protesting the spaceport have been killed by the Indonesian military since the plans were originally unveiled.

Real People Are Gross

Despite the mess it makes on Earth, NewSpace investments are growing in popularity among everyman-for-himself superrich techies.

 For them, dealing with today’s real social and environmental problems tends to involve paying icky taxes and/or remunerating their workers fairly. Meanwhile, finding solutions for potential future problems is far more profitable. For billionaires, “longtermism” packages up this predicament beautifully.

Factoring future populations into decision-making models is just a nice, sustainable thing to do. Longtermism on the other hand, is too much of a good thing. It’s an extreme utilitarian, accelerationist ideology asking us to drastically increase rates of economic growth and technological advancement to ensure humanities’ long-term survivability as a multiplanetary species.

Meanwhile, taxes and government interventions are framed as an impediment to growth and innovation. For these longtermists, someone potentially not being born on Mars in the far distant future is in many ways far worse than someone actually dying of a preventable disease or poverty today. Mars guy is super smart and loaded. Unlike the stinky real person, Mars guy is likely to live a long happy life free of dysentery. He’s white because rich people tend to be that way.

If this all sounds a bit fascist, that’s because it is. According to Oxford philosopher Nick Bostrom, widely considered the founding father of longtermism, “blacks are more stupid than whites,” as he once said on an extropian community message board. “I like that sentence and think it is true.” Bostrom then used an offensive slur beginning with “N.” “It seems that there is a negative correlation in some places between intellectual achievement and fertility,” he argued. “If such selection were to operate over a long period of time, we might evolve into a less brainy but more fertile species.” He later apologized for coming across as “racist.”

Thanks in part to Musk, the cost of space travel has dropped considerably. A seat on a Falcon 9 rocket and an eight-day stay on the International Space Station (ISS) now only costs $82 million. Musk predicts his one-way tickets to Mars will cost somewhere between $500,000 to $1 million, a price at which he thinks “it’s highly likely that there will be a self-sustaining Martian colony.” For the poors, Musk has an indentured labor package where workers take out a loan to pay for their tickets, paying them off later by mining for spice or something.

Life on Earth will end one day (we have somewhere between one and five billion years). But the universe will also end. What then? We could just keep on running through the vacuum of a dying universe. Or, instead of living as slaves obsessing over spice and birth quotas for some odious space baron, we could take a leaf from the Navajo’s book, taking the moon for sacred, and mountains, lakes, and rivers, too. If we treat our planet right, we might just live longer and better.

I’ll admit: I wrote two versions of this article, depending on the fate of the Intuitive Machines lander. In 1969, President Richard Nixon did something similar, just in case everyone died onboard Apollo 11. But when it comes to NewSpace, there’s no need for tears or alternative endings.

Private space missions will only ever serve the billionaires, not us.If we make no effort to change direction, we will end up where we are heading.”

March 3, 2024 Posted by Christina Macpherson | space travel | 1 Comment