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☆ A cluster of sunspots 15 times bigger than Earth could send a solar storm our way as early as Saturday
▼ + stars: | 2023-11-24 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +4 min

These have been fizzing with activity and could send solar weather toward Earth as early as Saturday. Space weather is mostly harmless, though scientists are looking out for a rare once-a-century superstorm. It had already shot out three M-class and several C-class solar flares before it came into view, per spaceweather.com. "The spots are fairly big and complex, which suggests they're likely to produce some space weather," said Owens. AdvertisementAs of Friday evening, the US and UK agencies that monitor space weather forecasted a low risk of any type of dangerous solar weather in the coming days.

Persons: Daniel Verscharen, Matt Owens, Owens, they're Organizations: Service, European Space Agency, NASA, University College London, University of Reading, US

☆ 28 stunning images of the Northern Lights
▼ + stars: | 2023-11-20 | by ( ) www.reuters.com time to read: 1 min

[1/28]A person stands on a car while looking at Auroras, caused by a coronal mass ejection on the Sun, that illuminate the skies in the southwestern Siberian Omsk region, Russia November 6, 2023. REUTERS/Alexey MalgavkoOMSK REGION, RUSSIA

Persons: Alexey Malgavko Organizations: REUTERS Locations: Siberian Omsk, Russia, Alexey Malgavko OMSK, RUSSIA

☆ Photos show the Northern Lights appeared as far south as Texas on Sunday from a double eruption on the sun. Auroras could become more common as solar activity nears its peak.
▼ + stars: | 2023-11-06 | by ( Grace Eliza Goodwin | Jenny Mcgrath | ) www.businessinsider.com time to read: +3 min

The Northern Lights could be seen in rare locations across the US over the weekend. Lubbock, Texas and Salt Lake City, Utah experienced the light shows. Stunning auroras this far south are rare but could become more common in the next year, or so. AdvertisementAdvertisementThe Northern Lights lit up the skies with brilliant reds, purples, and greens in a rare appearance this weekend in the southern half of the US. However, the sun is becoming more active and will soon reach solar maximum, a time of peak activity when solar eruptions are more common.

Persons: —, South Dakota DeKalb , Illinois Landon Moeller Organizations: Service, Weather Service, Salt Lake, Canada Northern, Northern, NOAA Locations: Lubbock , Texas, Salt Lake City , Utah, Colorado, Texas, Spokane , Washington, Aberdeen, South Dakota, Spokane , Washington Lubbock , Texas Riverton , Wyoming Salt Lake City , Utah, Salt, Salt Lake City, South Dakota DeKalb , Illinois, Park, Virginia, , Virginia Glasgow , Montana Ellicott City , Maryland Happisburgh, England Calgary , Alberta, Canada, Southern

☆ Huge ancient solar storm revealed by tree rings in French Alps
▼ + stars: | 2023-10-09 | by ( Will Dunham | ) www.reuters.com time to read: +5 min

Researchers said on Monday the solar storm - the sun sending a large burst of energetic particles into space - occurred 14,300 years ago. Nine such extreme solar storms now have been identified using tree-ring radiocarbon evidence, with the most recent in 774 and 993 AD. The largest directly observed solar storm, called the Carrington Event, occurred in 1859, wreaking havoc on telegraphs and creating a nighttime aurora so bright that birds sang as if the sun was rising. The effects of solar storms can disable electronics. "If similar solar storms happened today, they could be catastrophic for society, as we are so reliant upon technology," Heaton said.

Persons: Cecile Miramont, eked, Tim Heaton, Heaton, Edouard Bard, Cécile Miramont, Will Dunham, Rosalba O'Brien Organizations: REUTERS, University of Leeds, Engineering Sciences, Marseille University, Thomson Locations: Gap, Handout, England, France, paleoclimates, Aix, Washington

☆ Mission accomplished, India puts moon rover to 'sleep'
▼ + stars: | 2023-09-03 | by ( Arpan Chaturvedi | ) www.reuters.com time to read: +1 min

A view of the moon as viewed by the Chandrayaan-3 lander during Lunar Orbit Insertion on August 5, 2023 in this screengrab from a video released August 6, 2023. ISRO/Handout via REUTERS /File Photo Acquire Licensing RightsNEW DELHI, Sept 3 (Reuters) - India switched off its moon rover, the first craft to reach the lunar south poll, after it completed its two-week assignment conducting experiments, the country's space agency said. By landing on the moon, India joined the United States, China and the former Soviet Union. Pragyan travelled over 100 m (330 feet), confirming the presence of sulphur, iron, oxygen and other elements on the moon, ISRO said. "The satellite is healthy" and in earth orbit, ISRO said on Sunday, as it prepares for its 1.5 million-km (930,000-mile) journey.

Persons: Russia's Luna, Pragyan, Arpan Chaturvedi, William Mallard Organizations: ISRO, Handout, REUTERS, Indian Space Research Organisation, Soviet Union, Thomson Locations: DELHI, India, United States, China

ESA & NASA/Solar Orbiter/EUI team/Handout via REUTERS File Photo Acquire Licensing RightsBENGALURU, Sept 2 (Reuters) - Following quickly on the success of India's moon landing, the country's space agency launched a rocket on Saturday to study the sun in its first solar mission. The rocket left a trail of smoke and fire as scientists clapped, a live broadcast on the Indian Space Research Organisation's (ISRO) website showed. While Russia had a more powerful rocket, India's Chandrayaan-3 out-endured the Luna-25 to execute a textbook landing. Prime Minister Modi is pushing for India's space missions to play a larger role on a world stage dominated by the United States and China. Satellites in low earth orbit are the main focus of global private players, which makes the Aditya-L1 mission a very important project," he said.

Persons: clapped, Luna, Modi, Sankar Subramanian, Somak Raychaudhury, Rama Rao Nidamanuri, Nivedita, Jayshree, William Mallard Organizations: Solar Orbiter, ESA, NASA, Solar, Rights, Indian Space Research, Elon, SpaceX, Indian Institute of Space Science, Technology, ISRO, Thomson Locations: India, Russia, United States, China, Bengaluru

☆ India sets September launch date for mission to study the sun
▼ + stars: | 2023-08-28 | by ( ) www.reuters.com time to read: +1 min

A security guard stands behind the logo of Indian Space Research Organisation (ISRO) at its headquarters in Bengaluru, India, June 12, 2019. REUTERS/Francis Mascarenhas//File Photo Acquire Licensing RightsBENGALURU, Aug 28 (Reuters) - India's first space-based observatory to study the sun will be launched on Sept. 2, the country's space agency said on Monday. The Aditya-L1, India's first space-based solar probe, aims to study solar winds, which can cause disturbance on earth and are commonly seen as "auroras". "The total travel time from launch to L-1 (Langrange point) would take about four months for Aditya-L1," the Indian Space Research Organisation (ISRO) said in a post on X. It's latest moon mission had a budget of about $75 million- less than that of Hollywood space thriller "Gravity".

Persons: Francis Mascarenhas, Nivedita, Sakshi Dayal, Louise Heavens, Mike Harrison Organizations: Indian Space Research Organisation, ISRO, REUTERS, Rights, Twitter, Aditya, Thomson Locations: Bengaluru, India, Sriharikota

☆ Images from the Solar Orbiter spacecraft reveal tiny flares shooting from a 'hole' in the sun. They could explain how the sun blasts Earth with charged particles.
▼ + stars: | 2023-08-26 | by ( Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: +5 min

AdvertisementAdvertisementPicoflares could be the source of the solar wind that's blasting EarthAn animation of the solar wind shows particles streaming from the sun towards Earth. That stream, called the "solar wind," gets supercharged when coronal holes or big solar flares are pointed at our planet. Seeing the sun up close, at smaller scales, could reveal its secretsImages from the Solar Orbiter are the closest ever taken of the sun. "Jets, in general, have previously been observed in the solar corona," Chitta, who led the Solar Orbiter study and a team at Max Planck Institute for Solar System Research, told Space.com. NASA/SDONASA and the ESA launched Solar Orbiter in 2020, with a goal of studying these winds at their source.

Persons: Lakshmi Pradeep Chitta, NASA's Parker, Chitta, Space.com, it's, Andrei Zhukov Organizations: Service, Orbiter, Solar Orbiter, NASA Solar Dynamics, NASA, Lights, EUI Team, ESA, CSL, MPS, UCL, Probe, Jets, Solar, Max Planck Institute, Solar System Research, European Space Agency, Royal Observatory of Locations: Wall, Silicon, Royal Observatory of Belgium, Brussels

☆ Explainer: What is India's next space mission after moon landing?
▼ + stars: | 2023-08-25 | by ( ) www.reuters.com time to read: +2 min

REUTERS/Amit Dave Acquire Licensing RightsBENGALURU, Aug 25 (Reuters) - On the heels of the success of the Chandrayaan-3 moon landing, India's space agency has set a date for its next mission - this time to study the sun. It aims to study solar winds, which can cause disturbance on earth and are commonly seen as "auroras". In 2019, the government sanctioned the equivalent of about $46 million for the Aditya-L1 mission. The Indian space agency has earned a reputation for world-beating cost competitiveness in space engineering that executives and planners expect will boost its now-privatised space industry. The Chandrayaan-3 mission, which landed a spacecraft on the lunar south pole, had a budget of about $75 million.

Persons: Amit Dave, Joseph, Louis Lagrange, Nivedita, Giles Elgood Organizations: REUTERS, Rights, Indian Space Research Organisation, European Space Agency, NASA, Orbiter, ISRO, Thomson Locations: Gujarat Science City, Ahmedabad, India, Sriharikota, French, Bengaluru

☆ Sun-observing spacecraft sheds light on the solar wind's origin
▼ + stars: | 2023-08-24 | by ( Will Dunham | ) www.reuters.com time to read: +4 min

The sun as seen by the Solar Orbiter spacecraft in extreme ultraviolet light in this mosaic of 25 individual images taken on March 7, 2023, by the high resolution telescope of the Extreme Ultraviolet Imager (EUI) instrument. New observations by the Solar Orbiter spacecraft may provide an answer. "Unlike the wind on Earth that circulates the globe, solar wind is ejected outward into interplanetary space," Chitta said. "Earth and the other planets in the solar system whiz through the solar wind as they orbit around the sun. "This finding is important as it sheds more light on the physical mechanism of the solar wind generation," said solar physicist and study co-author Andrei Zhukov of the Royal Observatory of Belgium.

Persons: Lakshmi Pradeep Chitta, Max Planck, Chitta, Andrei Zhukov, Eugene Parker, Zhukov, Will Dunham, Rosalba O'Brien Organizations: Solar Orbiter, Solar, Max Planck Institute, Solar System Research, European Space Agency, NASA, Orbiter, Royal Observatory of, Thomson Locations: WASHINGTON, Germany, U.S, Royal Observatory of Belgium, American

☆ Solar Orbiter observes jets of material escaping the sun
▼ + stars: | 2023-08-24 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

CNN —The Solar Orbiter mission has discovered jets of material rapidly releasing from the sun’s outer atmosphere. An artist's concept shows the Solar Orbiter spacecraft circling the sun. The advanced instruments aboard Solar Orbiter, as well as NASA’s Parker Solar Probe, are helping to unlock the biggest mysteries that remain about the sun. The sun’s magnetic field is so massive that it stretches beyond Pluto, providing a pathway for solar wind to travel directly across the solar system. Solar Orbiter works in tandem with Parker Solar Probe, which is orbiting the sun on a seven-year mission after launching in August 2018.

Persons: “, ”, Lakshmi Pradeep Chitta, Max Planck, NASA’s Parker, Andrei Zhukov, ESA’s Daniel Müller, Parker Organizations: CNN, Orbiter, NASA, European Space Agency, Solar, ESA, Max, Max Planck Institute, Solar System Research, Probe, Space, Royal Observatory of, Solar Orbiter, Parker Locations: Germany, Royal Observatory of Belgium

☆ A Canadian lake best charts humanity’s impact on Earth
▼ + stars: | 2023-07-15 | by ( Katie Hunt | ) edition.cnn.com time to read: +6 min

Fossils embedded in rock reveal intriguing details about animals, plants and other life-forms that once called Earth home. ConsequencesCrawford Lake in Ontario is the geological site that best reflects a new epoch recognizing the impact of human activity on Earth, said geologists of the Anthropocene Working Group. The Anthropocene Working Group determined in 2016 that the epoch began around 1950 — the start of the era of nuclear testing. The international research group says that Crawford Lake in Ontario best charts humanity’s impact on Earth. Back then, it took 10 hours to relay a single image to Earth — incredibly slow by today’s standards.

Persons: Crawford, they’ve, Amenhotep III, didn’t, Philippe Martinez, Mona Lisa of Egypt, Thais Rabito Pansani, —, Webb, Ashley Strickland, Katie Hunt Organizations: CNN, Conservation, Scientists, MAFTO, Sorbonne University, NASA Mariner, Mariner, NASA Jet Propulsion, CNN Space, Science Locations: Ontario, Brazil, South America, Americas

☆ The sun’s activity is peaking sooner than expected
▼ + stars: | 2023-07-14 | by ( Ashley Strickland | ) edition.cnn.com time to read: +11 min

Every 11 years or so, the sun experiences periods of low and high solar activity, which is associated with the amount of sunspots on its surface. Over the course of a solar cycle, the sun will transition from a calm to an intense and active period. During the peak of activity, called solar maximum, the sun’s magnetic poles flip. A solar activity spikeThe current solar cycle, known as Solar Cycle 25, has been full of activity, more so than expected. The solar storms generated by the sun can affect electric power grids, GPS and aviation, and satellites in low-Earth orbit.

Persons: ”, Mark Miesch, “, Alex Young, ” Miesch, Scott McIntosh, Robert Leamon, Leamon, Miesch, Young, auroras, Bill Murtagh, ” Murtagh, NASA’s Parker, “ We’ve Organizations: CNN, National Oceanic, Prediction, NASA's Solar Dynamics, NASA, SpaceX, Heliophysics, Goddard Space Flight, GPS, National Center for Atmospheric Research, Goddard Planetary Heliophysics, University of Maryland, College Park, American University, Dynamics, Geological Survey, Probe Locations: Boulder , Colorado, Greenbelt , Maryland, Baltimore County, New Mexico , Missouri, North Carolina, California, United States, England, United Kingdom, Alaska, Canada, Iceland, Norway, Scandinavia, Michigan, Upper Midwest, Pacific, Quebec

☆ A solar storm is due to hit Earth today, sparking stunning auroras. Here's how to see them.
▼ + stars: | 2023-07-06 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +6 min

It should be relatively mild but could spark beautiful auroras visible from around the world. NOAA space weather prediction centerHead to the National Oceanic and Atmospheric Administration's space weather website for the latest forecast to see if auroras are likely to be visible where you are. As the sun becomes more active, it is more likely to send solar storms our way. Flights are more likely to be rerouted or grounded in bad space weather, for instance, experts previously told Insider. In the meantime, our dependence on satellite infrastructure has increased, and our vulnerability to space weather has therefore increased," said Verscharen.

Persons: —, Daniel Verscharen, auroras, Igor Hoogerwerf, SANKA VIDANAGAMA, It's Organizations: Service, University College London, NOAA, National Oceanic, Atmospheric Administration, Mount Cook National, Getty, Royal Photographic Society Locations: Europe, Michigan, Maine, New York, Idaho, Illinois, Oregon, Phoenix , Arizona, Aurora, Mount, Christchurch , New Zealand, AFP

☆ The sun has produced a record number of sunspots — and it could mean power outages, grounded flights, and beautiful auroras
▼ + stars: | 2023-07-04 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +4 min

Scientists are paying close attention to this number because it can help predict if powerful solar flares may cause problems for Earth. Because we're seeing more sunspots than expected, we're likely to see a much stronger solar maximum than had been anticipated. A solar maximum is on its wayThe sun follows a solar cycle, whereby its activity grows and wanes approximately every 11 years. The latest solar cycle was particularly quiet and may have lulled us into a false sense of security, he added. Still, if the sun peaks at 200 sunspots, it will be far from the biggest solar maximum on record.

Persons: —, Auroras, Keith Strong, Mathew Owens, Owens Organizations: Service, Atmospheric Administration, NOAA, NASA, Federal Aviation Administration, Riverton, Twitter, Royal Observatory, University of Reading Locations: North America, Central America, South America, Arizona, Riverton, Belgium

☆ ‘Ghost particle’ portrait of the Milky Way revealed
▼ + stars: | 2023-06-29 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

CNN —For the first time, astronomers have assembled a glowing portrait of the Milky Way galaxy using cosmic “ghost particles” detected by a telescope embedded in Antarctica’s ice. Over the years, astronomers have showcased stunning images of the Milky Way through electromagnetic radiation from visible light or radio waves. These tiny, high-energy cosmic particles are often referred to as ghostly because they are extremely vaporous and can pass through any kind of matter without changing. The IceCube detector is seen under a starry night sky, with the Milky Way appearing over low auroras in the background. Cosmic rays are mostly made up of protons or atomic nuclei that have been stripped from atoms, according to NASA.

Persons: “, ’ ”, Naoko Kurahashi Neilson, Amundsen, Scott, Kurahashi Neilson, Yuya Makino, Steve Sclafani, Mirco, IceCube, ”, Chad Finley, ” Sclafani, Victor Hess, ” Kurahashi Neilson Organizations: CNN, Drexel University, National Science, Pole, NSF, Germany’s TU Dortmund University, Stockholm University, NASA Locations: Antarctica, Germany’s

☆ Powerful solar flares have been causing radio blackouts on Earth — here's a time-lapse video of 4 years of intense storms on the sun
▼ + stars: | 2023-06-28 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +5 min

The sun is about to enter a peak activity period, letting off space weather-causing solar flares. These solar flares aren't dangerous but have caused sporadic radio blackouts on Earth. A few powerful solar flares have already sent space weather towards our planet in recent months. NOAA/InsiderHere's what this looks like:In the time-lapse video, solar flares appear as an intense brightening of a region on the sun. How solar flares can lead to radio blackoutsDuring certain space weather events, such as solar flares, solar energetic particles travel down geomagnetic field lines in the polar regions.

Persons: —, Mathew Owens, We're, aren't Organizations: Service, NOAA, NASA, University of Reading, Federal Aviation Administration, Riverton Locations: Riverton , Utah, New Mexico, Belgium

☆ Striking pictures show the ISS crossing a sunspot big enough to swallow two Earths during a spacewalk
▼ + stars: | 2023-06-14 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +3 min

The station crossed three sets of sunspots, including one big enough to swallow two Earths. The ISS cast its shadow across three sets of sunspots, one of which was big enough to swallow two Earths whole. The ISS crossed three sets of sunspots, including one that was would be big enough to swallow Earth. Solar flares have previously been known to cause radio blackouts on Earth as well as create stunning auroras. Thierry Legault www.astrophoto.frMore sunspots and solar flares have been appearing on the sun as it reaches a decadal peak of activity.

Persons: —, Stephen Bowen, Warren, Woody, Hoburg, Thierry Legault www.astrophoto.fr Thierry Legault, Thierry Legault www.astrophoto.fr, Legault, Thierry Legault Organizations: NASA, Service, International Space, ISS Locations: Amsterdam

☆ Time-lapse video shows increasingly powerful solar storms raging as the sun becomes its most active in a decade
▼ + stars: | 2023-06-08 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +4 min

A time-lapse video shows the sun getting more chaotic over the past four years. That's because solar activity could impact Earth, creating bursts of electromagnetic energy that can affect everything from the power grid to GPS signals. NOAA/InsiderAs solar activity ramps up, more sunspots and eruptions have been appearing on the sun's surface, sending solar winds into the universe that can hit our planet. Here's what this looks like:In the time-lapse video, solar flares appear as an intense brightening of a region on the sun. Meanwhile, the sun's surface appears gradually less homogenous, indicating more magnetic activity at the surface.

Persons: —, Mathew Owens, We're, aren't, Owens Organizations: Service, NOAA, University of Reading, NASA Locations: Riverton , Utah, New Mexico, Belgium

☆ First mission to ‘touch’ the sun catches the solar wind
▼ + stars: | 2023-06-07 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

The slower solar wind, located in the same plane of the solar system as Earth, flows at a calmer 249 miles per second (400 kilometers per second). This flip causes the coronal holes to appear across the sun’s surface and release bursts of solar wind directly toward Earth. JHU Applied Physics Laboratory/NASA's Goddard Space Flight CenterUnderstanding the source of the solar wind can help scientists better predict space weather and solar storms that can affect Earth. Fortunately, Parker Solar Probe and a separate mission, Solar Orbiter, are perfectly poised to observe the sun’s powerful, dynamic forces at play. “There was some consternation at the beginning of the solar probe mission that we’re going to launch this thing right into the quietest, most dull part of the solar cycle,” Bale said.

Persons: Eugene Parker, Parker, ”, James Drake, “ That’s, Stuart D, Bale, ” Parker, ” Bale Organizations: CNN, Parker, Probe, JHU, Physics Laboratory, Space, University of Maryland, College Park, University of California, Orbiter, Parker Solar Probe Locations: Berkeley

☆ A sunspot four times the size of Earth is visible right now — here's how to see it without a telescope
▼ + stars: | 2023-05-23 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +4 min

A sunspot four times the size of the Earth is crossing the sun right now. "A giant sunspot is crossing the sun's disk, and I could see it clearly with solar glasses," said Yeom, per spaceweather.com, adding: "Caution! The sun is gearing up to a peak of activityA video of the sun taken on May 18 shows a powerful solar flare being released. SDO/NASAExperts have been keeping a watchful eye on this particular sunspot, called AR3310, while it is facing the Earth. As this one rolled around the side of the sun, it let off a substantial solar flare, a giant explosion that sends energy, light, and high-speed particles into space.

☆ Powerful solar flare that erupted from a sunspot three times the size of the Earth caused widespread radio blackouts
▼ + stars: | 2023-05-18 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +3 min

A powerful solar flare exploded on Tuesday, caused by a sunspot three times the size of the Earth. There have been a series of recent space weather events as the sun enters a period of peak activity. A video of the sun taken on May 18 shows a powerful solar flare being released. As the sun becomes more active, it is exhibiting more frequent solar events like solar flares and coronal mass ejections. An X-class solar flare was spotted in March causing radio blackouts in parts of southeast Asia, Australia, and New Zealand.

☆ 10 Things in Tech: Amazon is offering money to pick up your order, ChatGPT writes a “Succession” scene, and tips from an OnlyFans creator
▼ + stars: | 2023-05-10 | by ( Diamond Naga Siu | ) www.businessinsider.com time to read: +4 min

Amazon Astro Amazon1. Internal documents revealed that Amazon plans to make Astro "more intelligent, more useful, and conversational." The project is internally called "Burnham" and is the latest example of Amazon's push to bring AI to its services and products. Internal documents signal that Amazon is pretty confident that this is a major upgrade to the home robot. Amazon is offering $10 for you to pick up your own order.

☆ Get Ready to See More of the Northern Lights
▼ + stars: | 2023-05-05 | by ( April Rubin | ) www.nytimes.com time to read: +1 min

In the southern hemisphere, aurora australis, or the southern lights, are typically visible from Antarctica, Australia and south of Argentina. As the sun’s magnetic fields flip over 11 years, this cycle, phases between solar minimum and solar maximum, Dr. Cameron said. Experts predict that solar maximum will be reached in 2025, meaning the auroral oval, or the area on earth where the lights are visible, will widen until then. “When we’re in the minimum part of the solar cycle, the sun is very quiet, basically nothing going on,” Dr. Cameron said. The solar cycle is tied to the sun’s magnetic field, Dr. Cameron said, but doesn’t affect its temperature.

☆ I've studied the sun for 23 years. Here's what happened during the last solar maximum and what to expect from this one.
▼ + stars: | 2023-04-25 | by ( Crystal Raypole | ) www.businessinsider.com time to read: +6 min

Solar maximum is a peak in the sun's activity that happens around the middle of each solar cycle. Mathew OwensThe solar maximum represents a peak in solar activity when the sun's magnetic field reaches its strongest and most disordered and dynamic point. NASA/Solar Dynamics ObservatorySolar cycles typically last 11 years, and the solar maximum happens roughly in the middle of each cycle. The sun's magnetic field reaches peak strength during solar maximum, generating an increase in events like solar flares and coronal mass ejections. These bursts are around four times as likely to occur during a solar maximum than a solar minimum.

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