From frank at mclc908.org Fri Mar 11 15:19:31 2016 From: frank at mclc908.org (Frank) Date: Fri, 11 Mar 2016 15:19:31 -0500 Subject: [MIham] Unexpected Geomagnetic Storm on March 11th In-Reply-To: <0c5fce34d5ca05f64a13d085d7020769562.20160311181719@mail248.suw12.mcsv.net> References: <0c5fce34d5ca05f64a13d085d7020769562.20160311181719@mail248.suw12.mcsv.net> Message-ID: <56E32853.1050304@mclc908.org> *Space Weather News for March 11, 2016* http://spaceweather.com *UNEXPECTED GEOMAGNETIC STORM: * Earlier today, the outskirts of a CME previously expected to miss Earth instead /hit/. The impact sparked a G2-class geomagnetic storm and bright auroras around the Arctic Circle. At the time this alert is being written, the storm is still in progress. Visit Spaceweather.com for updates. *AVIATION RADIATION EXPERIMENT: * En route to observe the March 9th total eclipse in Indonesia, the students of Earth to Sky Calculus conducted an unusual experiment in aviation radiation. Their plane flew a great circle around the Pacific Ocean, skirting the Arctic Circle and crossing the equator in a relatively short period of time. This allowed them to take a snapshot of onboard cosmic radiation doses over a wide range of latitude. Visit Spaceweather.com for results. From frank at mclc908.org Fri Mar 25 22:29:18 2016 From: frank at mclc908.org (Frank) Date: Fri, 25 Mar 2016 22:29:18 -0400 Subject: [MIham] Coronal Canyon Spews Solar Wind Toward Earth In-Reply-To: <0c5fce34d5ca05f64a13d085d7020769562.20160325192411@mail96.atl11.rsgsv.net> References: <0c5fce34d5ca05f64a13d085d7020769562.20160325192411@mail96.atl11.rsgsv.net> Message-ID: <56F5F3FE.4040709@mclc908.org> *Space Weather News for March 25, 2016* http://spaceweather.com *HOLE IN THE SUN'S ATMOSPHERE: * A canyon-shaped hole in the sun's atmosphere has opened up and it is spewing solar wind toward Earth. Estimated time of arrival: March 27-28. Arctic sky watchers should be alert for a springtime display of auroras. Visit http://spaceweather.com for more information. *NEW RADAR IMAGES OF EARTH-BUZZING COMET:* Earlier this week, comet fragment P/2016 BA14 made an unusually-close approach to Earth. Using a radar in the Mojave Desert, NASA researchers pinged the comet as it passed by, revealing an icy nucleus that looks like a brick--or a pear--depending on your point of view. See for yourself on today's edition of http://spaceweather.com