| | Switch to: Europe, USA, New Zealand, Antarctica Credit: NOAA/Ovation Planetary K-index Now: Kp= 1 quiet 24-hr max: Kp= 3 quiet explanation | more data Interplanetary Mag. Field Btotal: 5.71 nT Bz: -4.37 nT south more data: ACE, DSCOVR Updated: Today at 1145 UT Coronal Holes: 25 Jul 22 There are no significant coronal holes on the Earthside of the sun. Credit: SDO/AIA Noctilucent Clouds Noctilucent cloud season is underway. The clouds are currently spreading as far south as +45N (Oregon). Switch view: Europe, USA, Asia, Polar Updated Jul25 SPACE WEATHER NOAA Forecasts | | Updated at: 2022 Jul 25 2200 UTC FLARE | 0-24 hr | 24-48 hr | CLASS M | 05 % | 05 % | CLASS X | 01 % | 01 % | Geomagnetic Storms: Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm Updated at: 2022 Jul 25 2200 UTC Mid-latitudes | 0-24 hr | 24-48 hr | ACTIVE | 10 % | 10 % | MINOR | 01 % | 01 % | SEVERE | 01 % | 01 % | High latitudes | 0-24 hr | 24-48 hr | ACTIVE | 15 % | 15 % | MINOR | 15 % | 15 % | SEVERE | 20 % | 20 % | | | | | | | | | | | | Never miss another geomagnetic storm. Sign up for Space Weather Alerts and you'll receive a text message when magnetic storms erupt. Aurora your guides and professional astronomers use this service. You can, too! | | | WHY DOESN'T JUPITER HAVE RINGS LIKE SATURN? Because it's bigger, Jupiter ought to have larger, more spectacular rings than Saturn. The giant planet's rings should be among the very brightest objects in the night sky of Earth. New research explains what went wrong. Jupiter's Galilean satellites destroy significant rings as soon as they form: press release. AURORAS IN THE USA: Photographer Andrew Harvey has been wondering if he could see auroras from Oregon. The answer is "yes." On July 23rd, a CME struck Earth's magnetic field, allowing Harvey to take this picture from Mount Hood: "It was a great show!" says Harvey. "I watched the auroras from Cooper Spur on Mt. Hood at 6813 ft elevation. Lights from the Hood River and The Dalles (the largest city in Wasco County) interfered, but during the peak of the display around midnight, I had no trouble photographing the auroras above the light pollution." The CME's impact sparked a G1-class geomagnetic storm with photographic auroras in the USA as far south as Shenandoah National Park in Virgina. Subscribers to our Space Weather Alert Service received a "heads-up" text message 30 minutes before the CME struck, giving photographers time to dash outside and position their cameras. Aurora alerts: SMS Text. more images: from Heather Tianen of Corbett, Oregon; from Marcin Grzybowski of Great Falls, Montana; from MaryBeth Kiczenski of Frankfort, Michigan; from Stephanie Graudons of Monroe, New Hampshire; from Peter Forister in theShenandoah National Park, Virginia; from Rocky Raybell at Mud Lake, Washington; from Sujay Singh of Raquette Lake, NY Realtime Aurora Photo Gallery Free: Spaceweather.com Newsletter COSMIC RAY BALLOON PHOTOGRAPHS PYROCUMULOUS CLOUDS: An extreme wildfire is burning out of control on the edge of California's Sierra National Forest. On Saturday morning, we (Spaceweather.com and Earth to Sky Calculus) photographed it from the stratosphere: This image shows the "Oak Fire" from an altitude of 98,540 feet. At the epicenter, a pyrocumulous cloud can be seen rising more than 10,000 feet in the air. From there, a wedge of dense smoke stretches more than 60 miles across the Sierra, blanketing Mono Lake in the lower right corner. The photo was taken by a camera onboard a cosmic ray research balloon, which we launched on July 23rd to investigate that morning's geomagnetic storm. The Oak Fire was an unexpected catch. Stay tuned for the radiation data. Realtime Space Weather Photo Gallery Free: Spaceweather.com Newsletter "I LOVE YOU MORE" MOONSTONE PENDANT: Nothing says "I love you" like a moonstone from space. On May 26th, this sterling silver moonstone pendant hitched a ride to the stratosphere on an Earth to Sky Calculus cosmic ray balloon. Here it is floating 112,201 feet above the Sierra Nevada mountains of central California: You can have it for $142.95. The students are selling these pendants to support their cosmic ray ballooning program. Engraved with "I Love You More," it makes a great anniversary, birthday or (never too early!) Christmas gift. Each pendant comes with a greeting card showing the moonstone in flight and telling the story of its trip to the stratosphere and back again. Far Out Gifts: Earth to Sky Store All sales support hands-on STEM education Realtime Noctilucent Cloud Photo Gallery Free: Spaceweather.com Newsletter Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA's Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth's atmosphere and many other characteristics. Daily results are presented here on Spaceweather.com. On July 25, 2022, the network reported 6 fireballs. (6 sporadics) In this diagram of the inner solar system, all of the fireball orbits intersect at a single point--Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies] Potentially Hazardous Asteroids ( PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time. On July 25, 2022 there were 2283 potentially hazardous asteroids. | Recent & Upcoming Earth-asteroid encounters: Asteroid | Date(UT) | Miss Distance | Velocity (km/s) | Diameter (m) | 2022 OK | 2022-Jul-20 | 1.4 LD | 5 | 8 | 2022 OG | 2022-Jul-23 | 6 LD | 13 | 26 | 2017 RX2 | 2022-Jul-24 | 17.2 LD | 14.2 | 17 | 2022 NV1 | 2022-Jul-24 | 13 LD | 8.1 | 52 | 2022 ON | 2022-Jul-25 | 5.1 LD | 11.6 | 13 | 2022 OA | 2022-Jul-25 | 5 LD | 10.5 | 42 | 2022 OY | 2022-Jul-26 | 15.5 LD | 13.3 | 29 | 2022 ML3 | 2022-Jul-26 | 7.6 LD | 1.5 | 12 | 2022 NU1 | 2022-Jul-29 | 12.3 LD | 8.3 | 44 | 2016 CZ31 | 2022-Jul-29 | 7.3 LD | 15.5 | 129 | 531944 | 2022-Jul-30 | 18.2 LD | 5.9 | 192 | 2020 PP1 | 2022-Aug-01 | 13.1 LD | 3.7 | 17 | 2020 PN1 | 2022-Aug-03 | 9.7 LD | 4.6 | 29 | 2015 FF | 2022-Aug-12 | 11.2 LD | 9.2 | 17 | 2019 AV13 | 2022-Aug-22 | 19.1 LD | 8.8 | 135 | 2020 QW3 | 2022-Aug-22 | 14.1 LD | 18.1 | 30 | 2015 QH3 | 2022-Aug-22 | 5.6 LD | 7 | 14 | 2017 BU | 2022-Aug-29 | 15.8 LD | 7 | 32 | 2021 CQ5 | 2022-Sep-01 | 8.7 LD | 13.5 | 7 | 2020 PT4 | 2022-Sep-15 | 19.7 LD | 10.8 | 39 | Notes: LD means "Lunar Distance." 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach. | Cosmic Rays in the Atmosphere | SPACE WEATHER BALLOON DATA: Almost once a week, Spaceweather.com and the students of Earth to Sky Calculus fly space weather balloons to the stratosphere over California. These balloons are equipped with sensors that detect secondary cosmic rays, a form of radiation from space that can penetrate all the way down to Earth's surface. Our monitoring program has been underway without interruption for 7 years, resulting in a unique dataset of in situ atmospheric measurements. Latest results (Nov. 2021): Our balloons have just measured a sudden drop in atmospheric radiation. It happened during the strong geomagnetic storms of Nov. 3-4, 2021. Here are the data: This is called a "Forbush decrease," named after American physicist Scott Forbush who studied cosmic rays in the early 20th century. It happens when a CME from the sun sweeps past Earth and literally pushes cosmic rays away from our planet. Radiation from deep space that would normally pepper Earth's upper atmosphere is briefly wiped out. We have measured Forbush decreases before. For example, here's one from Sept. 2014. The Forbush Decrease of Nov. 3-4, 2021, was the deepest in the history of our 7-year atmospheric monitoring program. Radiation levels in the stratosphere over California dropped nearly 20%, more than doubling the previous record from our dataset. En route to the stratosphere, our sensors also pass through aviation altitudes, so we can sample radiation where planes fly. This plot shows how the Forbush decrease was restricted to the stratosphere; it did not affect lower levels of the atmosphere: The dose rates shown above are expressed as multiples of sea level. For instance, we see that boarding a plane that flies at 25,000 feet exposes passengers to dose rates ~10x higher than sea level. At 40,000 feet, the multiplier is closer to 50x. The higher you fly, the more radiation you will absorb. .Who cares? Cosmic rays are a surprisingly "down to Earth" form of space weather. They can seed clouds, trigger lightning, and penetrate commercial airplanes. According to a study from the Harvard T.H. Chan school of public health, crews of aircraft have higher rates of cancer than the general population. The researchers listed cosmic rays, irregular sleep habits, and chemical contaminants as leading risk factors. Somewhat more controversial studies (#1, #2, #3, #4) link cosmic rays with cardiac arrhythmias and sudden cardiac death. .Technical notes: The radiation sensors onboard our helium balloons detect X-rays and gamma-rays in the energy range 10 keV to 20 MeV. These energies span the range of medical X-ray machines and airport security scanners. Data points in the first graph ("Stratospheric Radiation") correspond to the peak of the Regener-Pfotzer maximum, which lies about 67,000 feet above central California. When cosmic rays crash into Earth's atmosphere, they produce a spray of secondary particles that is most intense at the entrance to the stratosphere. Physicists Eric Regener and Georg Pfotzer discovered the maximum using balloons in the 1930s and it is what we are measuring today. | The official U.S. government space weather bureau | | The first place to look for information about sundogs, pillars, rainbows and related phenomena. | | Researchers call it a "Hubble for the sun." SDO is the most advanced solar observatory ever. | | 3D views of the sun from NASA's Solar and Terrestrial Relations Observatory | | Realtime and archival images of the Sun from SOHO. | | information about sunspots based on the latest NOAA/USAF Active Region Summary | | from the NOAA Space Environment Center | | fun to read, but should be taken with a grain of salt! Forecasts looking ahead more than a few days are often wrong. | | from the NOAA Space Environment Center | | the underlying science of space weather | | BestCSGOGambling is the best site for everything related to CSGO gambling on the web | | To find reviews of new online casino sites in the UK try The Casino DB where there are hundreds of online casino reviews complete with bonuses and ratings. Alternatively, Online-Casinos.xyz is another massive directory of online casinos listing sites for the UK and Worldwide. Casinos that offer Rupees for bonuses are very generous to Indian players. 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