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<ul class="summary-list"><li>NASA says <a target="_blank" class="" href="https://www.businessinsider.com/sun-more-active-solar-storms-auroras-power-outages-grounded-flights-2023-2">the sun is in the highly active "maximum phase"</a> of its 11-year solar cycle.</li><li>That means there will probably be big solar storms bringing beautiful aurora in the next year or so.</li></ul>Thanks to the sun, we're in the middle of the best time to <a target="_blank" class="" href="https://www.businessinsider.com/saw-northern-lights-surprising-photos-misleading-2024-5">see the northern lights</a> — and maybe the worst time to be a satellite.NASA announced Tuesday that the sun is in the "<a target="_blank" class="" href="https://www.businessinsider.com/solar-maximum-could-sooner-than-expected-2023-6">maximum phase</a>" of its 11-year solar cycle, which basically means it's hyperactive.Our once-quiet star has been roiling with plasma arcs and sunspots and occasionally erupting, shooting <a target="_blank" class="" href="https://www.businessinsider.com/second-giant-coronal-hole-sun-solar-winds-space-weather-aurora-2023-3">energized particles out into space</a> — sometimes in Earth's direction.When those eruptions wash over our planet, they can trigger <a target="_blank" class="" href="https://www.businessinsider.com/photos-aurora-northern-lights-rare-appearance-south-solar-storm-2023-3">beautiful aurora unusually far from the poles,</a> in more populated regions, like Arizona or California.<div type="image" title="Shreveport" height="2268" width="4032" msid="114291827" hostid="261" sizebytes="508996"></div>But <a target="_blank" class="" href="https://www.businessinsider.com/sun-polar-vortex-video-from-solar-plasma-break-2023-2">solar eruptions</a> can also endanger satellites, astronauts, and even power grids here on Earth.NASA expects a lot of those explosions in the next six months to a year along with the <a target="_blank" class="" href="https://www.businessinsider.com/solar-storm-earth-northern-southern-lights-auroras-how-to-see-2023-4">geomagnetic storms</a> they cause in Earth's upper atmosphere. That's how much longer the sun will likely be at maximum, but there's still potential for big eruptions in the ensuing years as the sun winds down."We anticipate additional solar and geomagnetic storms leading to <a target="_blank" class="" href="https://www.businessinsider.com/northern-lights-sky-friday-us-solar-winds-giant-hole-sun-2023-3">opportunities to spot aurora</a> over the next several months, as well as potential technology impacts," Kelly Korreck, a program scientist in NASA's Heliophysics Division, said during the announcement on Tuesday.<h2 id="c28a25b0-3a8e-46c8-90f0-c090be8a9dfa">The problem with the aurora</h2>Solar eruptions, like solar flares or coronal mass ejections, don't directly harm anyone on Earth, but they disrupt a layer of the upper atmosphere called <a target="_blank" class="" href="https://www.businessinsider.com/spacex-launch-hole-ionosphere-earth-atmosphere-physicist-2023-7">the ionosphere</a>.Some technologies, such as <a target="_blank" class="" href="https://www.businessinsider.com/no-gps-on-moon-nasa-esa-artemis-plans-to-fix-2023-1">GPS</a> and high-frequency radios used for navigation, rely on the ionosphere and experience blackouts during some solar storms.That can <a target="_blank" class="" href="https://www.businessinsider.com/flying-becoming-more-miserable-climate-crisis-delays-costs-turbulence-2024-8">delay flights</a>, since planes use both satellite and radio communications. Indeed, a 2023 <a target="_blank" href="https://affiliate.insider.com?h=8e26d9ff6e66f84cefbfeefdbced737cfc1cea9d00c54bc32fab88e9e3d96541&amp;postID=670eb5b8434c477c232fed0c&amp;postSlug=nasa-declares-sun-maximum-what-solar-storms-mean-technology-auroras-2024-10&amp;site=bi&amp;u=https%3A%2F%2Fwww.nature.com%2Farticles%2Fs41598-023-30424-2">study</a> found that flights were 21% more likely to be delayed by at least 30 minutes during solar storms.Solar storms can also <a target="_blank" class="" href="https://www.businessinsider.com/solar-cycle-active-grounded-flights-downed-satellites-2024-8">push satellites out of orbit</a>.In very severe cases, solar storms can affect power grids. In 1989, a geomagnetic storm wiped out Quebec's electricity and caused other power-system issues in the US, UK, and Sweden.Nothing that major has happened in a while. But this solar maximum has been one for the books. In May, an <a target="_blank" rel="" href="https://www.businessinsider.com/photos-northern-lights-dazzle-night-sky-across-the-us-europe-2024-5">extreme geomagnetic storm </a>brought the northern lights as far south as Arkansas.<div type="image" title="northern lights night sky with pink and purple glow above silhouette of treetops" height="1500" width="2000" msid="114291826" hostid="261" sizebytes="115744"></div>It was "the strongest solar storm to reach Earth in two decades and possibly one of the strongest displays of auroras on record in the past 500 years," said Elsayed Talaat, the director of the Office of Space Weather Observations at the National Oceanic and Atmospheric Administration.Unlike two decades ago, NOAA can better <a target="_blank" class="" href="https://www.businessinsider.com/coronal-hole-on-sun-blasts-solar-wind-toward-earth-2023-3">forecast geomagnetic storms</a> and industries can prepare for them before they strike. Still, the May solar storm disrupted high-precision GPS that some US farmers rely on, causing about $500 million in losses, according to Bill Murtagh, a program coordinator at NOAA's Space Weather Prediction Center."The bigger the storm, the more visible the aurora, the further south it's visible. At the same time, we can't be hoping for these big displays because with them comes the threat to our critical infrastructure," Murtagh said during Tuesday's announcement. "We always have to be careful with what we wish for. "<h2 id="7ab5ba6b-e0c1-46b9-a08a-6f2bc8739d3b">Why the sun is at maximum</h2>The sun has an 11-year cycle, where it builds from a quiet, placid minimum to a roaring maximum, then dies back down.The current <a target="_blank" class="" href="https://www.businessinsider.com/next-solar-maximum-2025-what-expect-cycle-2023-4">solar maximum</a> likely began in early 2023, as the sun began to display more and more sunspots, which are low-temperature regions on the sun's surface created by concentrated magnetic field lines.<div type="image" title="side by side images of the sun bright yellow smooth sphere. the left image labeled solar minimum is completely smooth. the right image labeled solar maximum has dark spots speckled across the sun's center." height="1080" width="1920" msid="114291824" hostid="261" sizebytes="33546"></div>"There's <a target="_blank" class="" href="https://www.businessinsider.com/sunspots-15-times-size-of-earth-solar-storm-into-view-2023-11">more sunspots emerging</a>, the magnetic field has more chances to interact and increase the probability of having a significant geomagnetic storm," Lisa Upton, the co-chair of the Solar Cycle 25 Prediction Panel, which is an international panel of experts who have been keeping tabs on the sun, said during the announcement on Tuesday.NASA scientists couldn't confirm that the sun had reached maximum until they'd seen the number of sunspots start to plateau."It's by looking at the shape of that cycle, how it's progressed so far, and how we know that solar cycle progresses from our observations of the last 25 solar cycles, that we can really say that we're at the maximum phase now," Upton said.Eventually, scientists will be able to pinpoint an exact peak of the entire solar cycle, but not until many months after the maximum phase ends.

The sun is at its 11-year maximum. That means another year of eruptions that can endanger satellites, ground flights, and spark stunning auroras.

<keyword id="66" type="General" weightage="20" keywordseo="Delhi" source="Orion">Delhi</keyword> will witness one of the coldest days this winter season with the minimum temperature dipping to 5 degrees Celsius on December 20, data from the India Meteorological Department (<keyword id="6366970" type="General" weightage="100" keywordseo="imd" source="Orion">IMD</keyword>) revealed on Tuesday. According to the IMD, the minimum temperature will settle at 7 degrees Celsius till Thursday, 6 degrees on Saturday and Sunday, and 5 degrees on December 20. The maximum temperature too, will drop to 21 degrees Celsius with foggy mornings throughout the week. The maximum temperature for Tuesday in the national capital has been pegged at 23 degrees Celsius, while the relative humidity at 8.30 a.m. was recorded at 95 per cent. After a day of slight improvement, Delhi-NCR's <keyword id="2071721" type="General" weightage="20" keywordseo="Air-Quality-Index" source="Orion">Air Quality Index</keyword> (AQI) again deteriorated to the 'very poor' category. The AQI at 9 a.m. was recorded at 335, as per the System of Air Quality and Weather Forecasting And Research's (<keyword id="289484" type="General" weightage="20" keywordseo="SAFAR" source="Orion">SAFAR</keyword>) estimates. The levels of PM 10 and PM 2.5 pollutants in the air were recorded at 274 and 165 in the 'poor' and 'very poor' categories, respectively. "The air quality over Delhi-NCT is likely to remain in the very poor category on December 14 and 15. The air quality is likely to improve and remain in the lower end of the very poor to poor category on December 16. The air quality is likely to improve significantly from December 16 onwards due to relatively stronger wind," said the air quality and weather bulletin for Delhi-NCR. SEE ALSO: <a target="_blank" class="c-link c-message_attachment__title_link" href="https://www.businessinsider.in/sports/news/virat-kohli-to-skip-the-upcoming-south-africa-odi-series-says-report/articleshow/88270993.cms">Virat Kohli to skip the upcoming South Africa ODI series, says report</a> <a target="_blank" class="c-link c-message_attachment__title_link" href="https://www.businessinsider.in/thelife/personalities/news/tesla-boss-elon-musk-named-person-of-the-year-by-time-magazine/slidelist/88269832.cms">Tesla boss Elon Musk named ‘Person of the Year’ by Time magazine</a>

Delhi's minimum temperature to dip to 5 degrees on December 20, says IMD

<ul class="summary-list"><li>SharkNinja says its frying pans have a stronger nonstick coating because they're made at 30,000°F. </li><li>That's as hot as <a target="_blank" href="https://www.businessinsider.com/sun-images-reveal-creepy-threads-holes-light-bridge-solar-surface-2023-5">certain parts of the sun</a>, which is only 10,340°F at its surface.</li></ul>Is there a limit on <a target="_blank" href="https://www.insider.com/guides/kitchen/best-nonstick-pans">how hot a frying pan can get</a>?SharkNinja claims that its nonstick pans are manufactured under a maximum temperature of 30,000°F, which is almost three times hotter than <a target="_blank" href="https://www.businessinsider.com/sun-surface-photos-video-reveal-boiling-plasma-2020-1">the surface of the sun</a>. The company says the super hot temperature ensures that the nonstick coating on its pans is more resistant than competitor pans made at lower temperatures.In a proposed class-action <a target="_blank" href="https://www.classaction.org/media/brown-v-sharkninja-operating-llc.pdf">lawsuit</a> filed against the company, New Jersey native Patricia Brown argues that SharkNinja's claims are physically impossible.Brown purchased two 12-inch, nonstick frying pans made by SharkNinja in 2021, according to the lawsuit. SharkNinja advertised the pans under the premise that they wouldn't "stick, chip, or flake" because they had been manufactured at a scorching hot temperature of 30,000°F, unlike pans made at just 900°F that "rapidly lose nonstick."Brown says that claim is "little more than a glitzy, deceptive marketing technique," according to the lawsuit, which was filed in the New Jersey District Court on October 13.Brown says in the lawsuit that SharkNinja's nearly $60 pans lose their nonstick coating more rapidly than competitor pans priced under $10 or $20 and that manufacturing pans at a temperature of 30,000°F "defies the laws of physics and thermodynamics."On the company's product <a target="_blank" href="https://affiliate.insider.com?h=469e421c5c16ef18bfc8a186cdd524b207a7d842757000e1fe6a699e6685703a&amp;postID=65357b392c036636d7967dd3&amp;postSlug=sharkninja-sued-pans-made-with-temperature-hotter-than-sun-2023-10&amp;site=bi&amp;u=https%3A%2F%2Fwww.ninjakitchen.com%2Fproducts%2Fninja-neverstick-premium-12-inch-fry-pan-zidC30030">page</a> for the pan, it explains that it creates its nonstick coating by fusing plasma ceramic particles "super-heated at 30,000°F" to the surface of its pans to create "a super-hard, textured surface that interlocks with our exclusive coating for a superior bond."But Brown says the company's messaging suggests the pans themselves are also being heated to a temperature of 30,000°F in the manufacturing process."Defendant would have the average consumer believe that their nonstick pans are manufactured at a temperature that would vaporize the aluminum pan base metal into gas," Brown says in the lawsuit, adding that the boiling point of aluminum is about 4,478°F. She also notes that <a target="_blank" href="https://www.businessinsider.com/sun-surface-photos-video-reveal-boiling-plasma-2020-1">the surface of the sun</a> is a "blisteringly hot" 10,340°F, according to NASA — far below the company's maximum manufacturing temperature. While SharkNinja did not respond to Insider's request for a comment, there is evidence to suggest its claims are physically possible. Even in the early 2000s, the Danish cookware company Scanpan was coating its pans by heating up a mixture of ceramic and titanium to 30,000°F and firing the resulting plasma particles at the surface of its pans, <a target="_blank" href="https://www.washingtonpost.com/archive/lifestyle/food/2002/04/03/stuck-on-nonstick/48f31790-e136-4a85-bce1-7c7ae23b580b/">according to the Washington Post</a>. Brown's legal counsel told Insider that it's too early to comment on the case, but the lawsuit has gained the attention of some experts on advertising law.Gonzalo E. Mon, a partner at the law firm Kelley Drye &amp; Warren LLP who is not directly involved in the case, told Insider that the SharkNinja case initially caught his eye because the language of the complaint was "a little over the top" and he thought it might make for a catchy blog <a target="_blank" href="https://www.kelleydrye.com/viewpoints/blogs/ad-law-access/sharkninja-faces-heat-over-temperature-and-non-stick-claims">post</a>. In his post, Mon references a 2021 case, also cited by Brown, in which the National Advertising Division reviewed SharkNinja's claims. At the time, NAD didn't actually dispute SharkNinja's temperature claims, but they determined that SharkNinja didn't provide enough evidence that its cookware exhibited more resistance to "sticking, chipping, and flaking" than traditional nonstick pans, Mon noted in his post."One of the things that was interesting in this case is that they only tested one food. They tested scrambled eggs," Mon told Insider. "Clearly, one food was not enough for NAD, but they didn't say how many the company had to test."As Brown's case unfolds, Mon said he's waiting to see whether SharkNinja will present evidence on additional foods they've tested.While the lawsuit has not yet been certified as a class-action, Brown claims there are thousands of purchasers who have been hurt by the company's advertising.

A woman is suing SharkNinja for claiming that its frying pan is made at temperatures hotter than the sun

<keyword id="6358777" type="LOCATION" weightage="20" keywordseo="New-Delhi">New Delhi</keyword>, Biting cold conditions prevailed in the national capital on Saturday as the <keyword id="6437100" type="UNKNOWN" weightage="20" keywordseo="minimum-temperature">minimum temperature</keyword> dropped to 3.9 <keyword id="136546" type="PERSON" weightage="20" keywordseo="degrees-Celsius">degrees Celsius</keyword>, the lowest this season so far. "The Safdarjung Observatory, which provides representative data for the city, recorded a low of 3.9 degrees Celsius, four notches below normal. The <keyword id="137560" type="PERSON" weightage="20" keywordseo="maximum-temperature">maximum temperature</keyword> is likely to settle around 21 degrees Celsius," an IMD official said. The mercury dipped to 3.3 degrees Celsius and 3.4 degrees Celsius at Lodhi Road and Ayanagar, respectively, as icy winds from snow-laden <keyword id="623696" type="LOCATION" weightage="20" keywordseo="western-Himalayas">Western Himalayas</keyword> continued to sweep the city, <keyword id="3573341" type="COMPANY" weightage="20" keywordseo="The-India-Meteorological-Department">the India Meteorological Department</keyword> said. On Friday, the minimum temperature had plunged to 2.7 degrees Celsius at Jafarpur. The city had recorded a "severe" <keyword id="930845" type="PERSON" weightage="20" keywordseo="cold-day">cold day</keyword> on Thursday as the maximum temperature dropped to 15.2 degrees Celsius, seven notches below normal and the lowest this season so far. On Friday, it rose to 19.8 degrees Celsius. A "cold day" is when the minimum temperature is less than 10 degrees Celsius and the maximum is at least 4.4 degrees Celsius below normal. A "severe" cold day is when the maximum temperature is at least 6.5 notches below normal. Partly cloudy skies are predicted over the national capital towards the evening, the IMD said. The minimum temperature is expected to hover around 5 degrees Celsius in the next five to six days, it said. SEE ALSO: <a href="https://www.businessinsider.in/stock-market/news/heres-what-analysts-say-if-you-should-subscribe-or-not-to-the-300-crore-ipo-of-antony-waste-handling-cell/articleshow/79790998.cms">Antony Waste Handling Cell ₹300-crore IPO will open on Monday— these are the risks and opportunities</a> <a href="https://www.businessinsider.in/business/news/ikea-india-cfo-says-she-still-has-3500-crore-to-be-spent-in-india-the-pandemic-has-changed-targets-but-not-the-investment-plan/articleshow/79790938.cms">INTERVIEW: Ikea CFO says she still has ₹3,500 crore to be spent in India⁠— the pandemic has changed targets but not the investment plan</a> <a href="https://www.businessinsider.in/stock-market/news/how-to-check-mrs-bectors-food-specialities-ipo-allotment-status-online/articleshow/79808672.cms">Mrs Bectors Food Specialities IPO allotment: Here’s how to check share allotment status</a>

Delhi's temperature dropped to 3.9 degrees, the lowest of the season

<ul class="summary-list"><li>American Airlines policy says planes can reach 90 degrees before it's too hot to board passengers.</li><li>Delta Air Lines, Southwest Airlines, and United Airlines do not set a maximum temperature limit for boarding.</li></ul>Over the past few months, record-<a href="https://www.insider.com/delta-plane-stuck-on-tarmac-hours-child-bag-toilet-aisle-2023-8">high temperatures have caused chaos on commercial airliners</a> with people reportedly vomiting, passing out, and even being hospitalized due to extreme heat.Sports producer and life coach Lauren Moses took to <a href="https://twitter.com/Baller2Reporter/status/1682531357568692228?s=20">X</a> (formerly Twitter) in July after sitting on a hot American Airlines aircraft for two hours in the Texas heat before eventually deplaning. She later told the <a href="https://www.washingtonpost.com/travel/2023/07/26/plane-cabin-extreme-heat-passengers/">Washington Post</a> that the temperature outside was 99 degrees during the tarmac delay, and her plane had "minimal AC" during the ordeal.According to an internal document reviewed by <a href="https://www.politico.com/news/2023/09/05/sweltering-plane-cabins-are-travelers-newest-misery-00113720">Politico</a>, cabin temperatures on American can reach a sweltering 90 degrees Fahrenheit before the aircraft becomes too hot to board. This is more than JetBlue Airways' 85-degree limit — which recently changed from 80 degrees to cope with this summer's <a href="https://www.insider.com/summer-2023-heat-wave-tracker-temperature-records-2023-5">record-breaking heat wave</a> and minimize delays.American crewmembers are instructed to start cooling the plane once it hits 80 degrees, like closing window shades. And, the plane can still be boarded after it reaches 90 degrees in "extreme cases" but the "captain has the final authority," according to the internal document.American did not immediately respond to Insider's request for comment.While these carriers set a maximum cabin temperature limit for boarding, Delta Air Lines, Southwest Airlines, and United Airlines do not, the carriers told Politico.In July, Delta came under fire for keeping passengers on a plane for more than three hours in Las Vegas where temperatures reached well above 100 degrees. The airline acknowledged the "uncomfortable temperatures inside the cabin" and the Department of Transportation — which regulates passenger comfort — is <a href="https://www.travelweekly.com/Travel-News/Airline-News/DOT-investigating-Delta-tarmac-delay-Las-Vegas">investigating</a> the event.Cooling an aircraft can be challenging because onboard air conditioning systems are not optimized for operations on the ground. During flight, aircraft cabins are cooled by mixing hot, pressurized "bleed air" from the engines with cold air from outside the plane — which can be down to -76 Fahrenheit at 37,000 feet, <a href="https://thepointsguy.com/guide/how-aircraft-are-designed-to-keep-you-comfortable-at-37000-feet/">The Points Guy</a> reported.During a tarmac delay, however, this system does not work and airlines must rely on their engines for air conditioning, according to the Post.The problem is that during lengthy delays, the engines burn more fuel, in turn adding costs. This prompts airlines to shut down the engines as a main cooling source and rely on their auxiliary power unit or other external equipment."We have several measures to keep our cabins comfortable on the ground and in the air, including pre-conditioning and using the APU connection for cooling prior to departure," United told Insider. "We also do some internal tracking to determine trends and adjust accordingly."A Delta spokesperson told Insider that it uses air carts to pump air through the cabin and further aid cooling.But these tactics are still sometimes not enough to counteract extreme outside temperatures. And the dozens of passengers onboard emitting body heat don't help."When you're on the ground and the doors are closed … you're basically the equivalent of the car sitting there in the parking lot with all the windows closed," Robert Thomas, an assistant professor of aeronautical science at Embry-Riddle Aeronautical University, told the Post. "You're kind of baking in the sun."Currently, there are few laws to address hot planes. According to the <a href="https://www.transportation.gov/individuals/aviation-consumer-protection/tarmac-delays">DOT</a>, airlines must provide "comfortable cabin temperatures" during tarmac delays, but does not define "comfortable."However, the agency has held airlines accountable in the past. For example, in 2018, it <a href="https://www.usatoday.com/story/travel/flights/todayinthesky/2018/10/05/allegiant-fined-225-k-dot-hot-planes-during-tarmac-delays/1534101002/">issued</a> a fine to Allegiant Air for its failure to regulate aircraft temperatures between 2016 and 2017."DOT takes seriously any reported incidents of extreme temperature conditions on passenger aircraft and will take action, consistent with its authorities, to ensure passengers are protected," agency spokesperson Ben Halle told Insider on Tuesday.Airline unions are also taking action. In 2018, the <a href="https://unitedafa.org/news/2018/5/29/ensuring-everyones-safety-with-cool-cabin-temperatures/">Association of Flight Attendants-CWA</a> petitioned the DOT to set hard guidelines that would tell airlines to keep their planes between 65 degrees and 75 degrees in flight or on the ground, with a strict maximum of 80 degrees."It's really absurd that we don't have these on the books already," Nelson said at the time. "These need to be standards just like any other safety regulation."

You Searched For "maximum temperature" and got 5 results

The sun is at its 11-year maximum. That means another year of eruptions that can endanger satellites, ground flights, and spark stunning auroras.

Morgan McFall-Johnsen

Delhi's minimum temperature to dip to 5 degrees on December 20, says IMD

IANS

A woman is suing SharkNinja for claiming that its frying pan is made at temperatures hotter than the sun

Lakshmi Varanasi

Delhi's temperature dropped to 3.9 degrees, the lowest of the season

PTI

American Airlines reportedly allows cabin temperatures to reach as high as 90 degrees before it's too hot to board

Taylor Rains

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