Aurora alert! A huge filament from a large sunspot region (AR 2860) erupted on August 28. Its resulting coronal mass ejection or CME – a bubble of superheated gas from our sun – joined an earlier CME, created in a solar flare from this same region on the sun earlier that same day. Now both CMEs are headed our way. They’re expected to cause a beautiful display of auroras. Image via SpaceWeather.com.
Aurora alert for high latitudes
SpaceWeather.com is saying this morning (September 1, 2021) that two enormous bubbles of superheated gas from our sun – otherwise known as coronal mass ejections or CMEs – are headed toward Earth. There’s no danger to us on Earth, and these CMEs aren’t strong enough to knock out satellites or power grids. But they are about to give a “jolt” to our planet’s magnetic field, causing a beautiful display of auroras at high latitudes. SpaceWeather said:
Estimated time of arrival: September 1-2. NOAA forecasters expect geomagnetic storms as strong as category G2. That means people as far south as Idaho and New York (geomagnetic latitude 55 degrees) could see auroras.
As early as late last week, sun-watchers began to notice that solar ...