Connect with us

Science

A rare geomagnetic storm is heading to Earth — here’s what it means for critical infrastructure

Published

on

[ad_1]

The National Weather Service’s Space Weather Prediction Center (SWPC) issued a rare “severe” geomagnetic storm watch for the US for Friday night. The Met Office weather service also issued a similar watch for the UK for Friday and Saturday. They’re worried about coronal mass ejections (CMEs), explosions of plasma and magnetized particles coming from the Sun, that could potentially impact critical infrastructure, including the power grid, internet cables, and satellites.

This is the first time since 2005 that the SWPC has issued a watch for a storm rated as G4, which is the scale’s second-highest rating. Critical infrastructure operators have been notified so they can take precautions, the center says.

Worst-case scenario, all those charged particles shooting toward Earth could lead to power outages and disrupt services, including GPS, that rely on satellites. If grid and satellite operators can shore up their infrastructure ahead of time, and if the storm doesn’t grow even more extreme than forecast, people might not notice anything is going on — save for aurora lights that could become more visible. It’s too early to predict the impact, but the storm watch means it’s a good idea to prepare.

You can compare this geomagnetic storm watch to similar notices issued for tornadoes or hurricanes

You can compare this geomagnetic storm watch to similar notices issued for tornadoes or hurricanes. The watch means that conditions for a severe event are likely possible. If it elevates to a warning, that means the agency is pretty certain we’re about to get hit.

While the watch is in effect starting tonight, the timing is still up in the air. The peak of the storm could occur as early as this evening, Eastern Daylight Time, or later Saturday night. The agency only expects 20–45 minutes of lead time before issuing a warning. They won’t know the level of severity until the CMEs are around 1 million miles from Earth (the Sun is around 93 million miles away from Earth).

Once they reach Earth, CMEs interact with our planet’s magnetic field. That can suddenly induce an electrical current into power lines, railroad tracks, pipelines, and basically any long piece of infrastructure that can conduct electricity.

The last time a storm like this was a big problem was the notorious Carrington Event of 1859 when a G5 geomagnetic storm knocked out telegraph machines around the world. Obviously, there are a lot more technologies we rely on today that could become vulnerable. Blackouts would not only affect homes and businesses; they could also cut off power to the network of subsea fiber optic cables that undergird the internet. Fortunately, SWPC says, there should be enough redundancy in these systems to avoid major problems. But this is all still uncharted territory.

“I don’t think we have any real-time experience yet with a significant [geomagnetic] storm and fiber optic cables under the sea,” Rob Steenburgh, a space scientist at SWPC, said in a briefing. “There would be impacts, but they should not be to the level that would disable them.”

There are also changes to Earth’s atmosphere that could pose risks to satellites. The ionosphere, an upper layer of the atmosphere, becomes more dense — creating more drag for satellites in lower Earth orbit.

“They slow down … If they don’t take the proper measures, then they can lose altitude,” SWPC space weather forecaster Shawn Dahl said.

Back in 2022, a geomagnetic storm may have led to the demise of as many as 40 Starlink satellites that couldn’t reach their proper orbit. Changes in the ionosphere also affect high-frequency radio communications and GPS, potentially severing signals between GPS satellites and receivers on Earth.

The upside is that more people could see the northern and southern lights this weekend since auroras are the result of particles from solar storms interacting with Earth’s atmosphere. Back in 1859, the northern lights extended all the way to Central America. This time around, they might be seen as far south as Alabama.

[ad_2]

Source link

Continue Reading
Click to comment

Leave a Reply

Your email address will not be published. Required fields are marked *

Science

Starlink Mini brings space internet to backpackers

Published

on

By

[ad_1]

SpaceX’s Starlink internet-from-space service is already available for boatsplanes, vanlifersAmazonian villages, and rural homes in over 75 countries — now it’s coming to backpackers.

The new compact DC-powered Starlink Mini is about the size of a thick laptop and integrates the Wi-Fi router right inside the dish. And despite using less power than other Starlink terminals, it can still deliver speeds over 100Mbps.

“This product will change the world,” claimed SpaceX CEO Elon Musk on X, saying it took less than five minutes to setup.

Notably, the Mini kit consumes an average of just 20-40W compared to the 33-62W we measured just two years ago with a Standard Actuated dish and separate AC-powered Wi-Fi router. That means you can power the Mini dish for two to three hours from something like an Anker Prime 27,650mAh (99.54Wh) power bank, or a little over an hour with smaller 10,000mAh (40Wh) portable batteries you probably already have laying about. It requires a USB-C PD power source with a minimum rating of 100W (20V/5A). 

The Mini dish measures 11.75 x 10.2 x 1.45 inches (298.5 x 259 x 38.5mm) and weighs just 2.43 pounds (1.1kg), or 3.37 pounds (1.53kg) with the 49.2 foot (15m) DC power cable and kickstand. It has an IP67 rating meaning it’s protected from dust and rain, including short periods of water immersion.

In the US, Starlink Mini is an add-on to Residential plans — at least for now. The Mini kit costs $599 which is $100 more than the standard dish, and will cost an extra $30 per month to add the Mini Roam service to existing $120 Residential plans. That gives Starlink Mini users up to 50GB of mobile data each month, with the option to purchase more for $1 per GB, according to early-access invitations sent to some exiting US Starlink customers. 

While Starlink Mini is new to the US, a Starlink support page says it’s already available in Colombia, El Salvador, Guatemala, and Panama where it can be purchased with Mini Service or Mobile – Regional Service plans. In those countries, there’s no data or speed caps to use Mini, and in-motion and ocean use is not allowed. SpaceX says it’ll expand to more markets over time.

“Our goal is to reduce the price of Starlink, especially for those around the world where connectivity has been unaffordable or completely unavailable,” reads the Starlink support page. “In regions with high usage, like the US, where Starlink Mini places additional demand on the satellite network, we are offering a limited number of the Starlink Mini Kits to start at a higher price point.”

As a standalone service, Starlink Mini could be transformative for anyone in need of an inexpensive and sharable internet service that efficiently sips DC battery power. This includes families that depend upon a cobbled together solar generator for power, a squad of soldiers trying to fight back an invasion, or just bikepackers and overlanders taking the road less traveled.



[ad_2]

Source link

Continue Reading

Science

Elon Musk has another secret child with exec at his brain implant company

Published

on

By

[ad_1]

Elon Musk, who has long touted claims about the world’s supposed depopulation crisis, had another child with an executive at his brain implant company Neuralink, according to a report from Bloomberg. Neuralink director Shivon Zilis reportedly had the child with Musk earlier this year.

As noted by Bloomberg, Musk has repeated that line several times in the past, including during a 2022 interview with Tucker Carlson and again during an interview at the Milken Institute conference in May. He told Carlson “a collapsing birth rate is the biggest danger civilization faces, by far.” In 2021, Musk’s nonprofit organization donated $10 million to the University of Austin to fund the Population Wellbeing Initiative, a research group that studies the human population.

The revelation also follows multiple reports alleging inappropriate conduct from Musk in the workplace and with subordinates. A recent report from The Wall Street Journal said Musk had a sexual relationship with a former SpaceX intern who later became one of the company’s executives. Another employee says she refused Musk’s requests to have children with him several times, according to the Journal.

[ad_2]

Source link

Continue Reading

Science

Youth plaintiffs in Hawaii reach historic climate deal

Published

on

By

[ad_1]

A group of young plaintiffs reached a historic climate settlement with the state of Hawaii and Hawaii Department of Transportation in a deal that will push the state to clean up tailpipe pollution.

The 13 youth plaintiffs filed suit in 2022 when they were all between the ages of 9 and 18. In the suit, Navahine F. v. Hawaii Department of Transportation (HDOT), they alleged that the state and HDOT had violated their right to “a clean and healthful environment,” which is enshrined in Hawaii’s constitution.

“We got what we came for, and we got it faster than we expected.”

The settlement, reached on Thursday, affirms that right and commits the DOT to creating a plan to reach zero greenhouse gas emissions from transportation by 2045. To hit that goal, the state will have to dedicate at least $40 million to building out its EV charging network by the end of the decade and complete new pedestrian, bicycle, and transit networks over the next five years. The settlement also creates a new unit within HDOT tasked with coordinating CO2 emission reductions and a volunteer youth council to advise HDOT.

“I am so proud of all the hard work to get us to this historic moment. We got what we came for, and we got it faster than we expected,” the lead plaintiff, Navahine F., said in an emailed statement.

Back in 2018, Hawaii committed to reaching net-zero carbon dioxide emissions by 2045 — in line with what climate research determined was necessary to meet the Paris climate accord goal of stopping global warming. But the state wasn’t doing enough to reach that goal, the plaintiffs alleged. Transportation makes up the biggest chunk of the state’s greenhouse gas pollution.

“Climate change is indisputable,” Ed Sniffen, HDOT director of transportation, said in a press release. “Burying our heads in the sand and making it the next generation’s problem is not pono.”

Youth in Montana scored another historic legal win last year after the first climate case of its kind to go to trial. A state court found that a Montana policy that barred officials from considering the consequences of climate change when permitting new energy projects violated the rights of the plaintiffs to a “clean and healthful environment.” The lawsuit in Hawaii was expected to be the next landmark youth climate case to go to trial in the US. Several other state and federal youth climate suits are still pending in the US.

[ad_2]

Source link

Continue Reading

Trending

Copyright © 2017 Zox News Theme. Theme by MVP Themes, powered by WordPress.