"The two 'horns' may be caused by a peculiarly-shaped cryovolcanic vent with some sort of blockage causing material to be expelled with a weird flow pattern," he speculates. Richard Miles of the British Astronomical Association thinks 12P may be one of 10 to 20 known comets with active ice volcanoes. The double horns of the Falcon look just like they did in July 2023. 7, 2023, by Jose Manual Perez of the Comet Chasers, the same group that discovered the outburst two days earlier. Now, in October, scientists are confronted with the challenge of explaining how a comet can shapeshift itself into a Star Wars freighter twice: It was weird enough the first it happened in July. THE MILLENNIUM FALCON FLIES AGAIN: For the second time this year, a cryovolcanic eruption on Comet 12P/Pons-Brooks has expelled a cloud of debris in the shape of the Millennium Falcon. This could lead to magnetic reconnection and a strong, Earth-directed solar flare. It has many magnetic poles with + and - pressed together in close proximity. This magnetic map from NASA's Solar Dynamics Observatory shows the magnetic architecture of sunspot AR3460. The magnetic classification of AR3460 is 'beta-gamma-delta.' However, there is a sunspot now facing Earth with multiple poles mixed up and jostling together: Usually their magnetic poles are well separated, plus (+) and minus (-) far apart. 'DELTA SUNSPOT' FACES EARTH: Sunspots are giant islands of magnetism floating on the surface of the sun. Eclipse maps and glasses are available from. The narrow path of annularity stretches across both North and South America-with a partial eclipse visible from almost every point on both continents. 14th, the Moon will pass in front of the sun, producing a " ring of fire" annular eclipse. RING OF FIRE SOLAR ECLIPSE: This weekend, Saturday, Oct. 28, 2023, as a show of thanks for years of service and hope for future daisies: Until then, we will maintain AIM's iconic "daily daisy," frozen at Feb. There may be some hope of a recovery as AIM's orbit precesses into full sunlight in 2024. As a result AIM is offline, perhaps permanently. What happened to NASA's AIM spacecraft, which has been monitoring NLCs since 2007? Earlier this year, the spacecraft's battery failed. As the season progresses, these dots will multiply in number and shift in hue from blue to red as the brightness of the clouds intensifies. For the rest of the season, daily maps from NOAA 21 will be presented here:Įach dot is a detected cloud. An instrument onboard NOAA 21 ( OMPS LP) is able to detect NLCs (also known as "polar mesospheric clouds" or PMCs). The first clouds were detected inside the Arctic Circle by the NOAA 21 satellite. The northern season for NLCs began on May 26th. Solar wind flowing from this coronal hole could reach Earth on Oct. Switch to: Europe, USA, New Zealand, Antarctica Neutron counts from the University of Oulu's Sodankyla Geophysical Observatory show that cosmic rays reaching Earth are slowly declining-a result of the yin-yang relationship between the solar cycle and cosmic rays. Credit: SDO/HMIĬosmic Rays Solar Cycle 25 is intensifying, and this is reflected in the number of cosmic rays entering Earth's atmosphere. Sunspot AR3460 has a 'beta-gamma' magnetic field that harbors energy for M-class solar flares.
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