"Lunar Distance." 1 LD = 384,401 km, the distanceīetween Earth and the Moon. Each one comes with a greeting card showing the pendant in flight and telling the story of its journey to the stratosphere and back again.Īll sales support hands-on STEM education The students of Earth to Sky Calculus are selling space pendants to support their cosmic ray ballooning program. The sterling silver pendant touched space on April 29, 2023, when it hitched a ride onboard an Earth to Sky Calculus cosmic ray research balloon. SATURN'S CAT PENDANT: It's a far-out gift for the cat-lover in your life: Saturn's Cat. AR3331 may have some tricks up its sleeve as it turns toward Earth this weekend. Priviously, this sunspot was not thought to pose a threat for strong solar flares. Mariners may have noticed loss of signal at frequencies below 15 MHz for as much as 30 minutes after the flare. This, in turn, caused a minor blackout of shortwave radio transmissions over the Gulf of Mexico: map. NASA's Solar Dynamics Observatory captured the extreme ultraviolet flash:Ī pulse of radiation ionized the top of Earth's atmosphere. Sunspot AR3331 exploded on June 9th (1711 UT), producing an M2.5-class solar flare. Disappearing Earthside sunspots will be replaced by farside counterparts.
This means the sunspot number should remain high as the sun turns on its axis in the weeks ahead. Helioseismic maps of the farside of the sun show multiple large active regions, probably sunspots. 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 AR3327 has a 'beta-gamma' magnetic field that harbors energy for M-class solar flares.
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