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Keeping track of aurora forecasts, notifications, and community reports.

Did you see the Northern Lights (Aurora Borealis) visibility from last week if you were on that area? If you missed it and want to know more then there are some places where you can get reliable information: 1. Aurora Forecast Websites: Websites like the Space Weather Prediction Center (SWPC), Aurora Service, and the University of Alaska Fairbanks Geophysical Institute provide forecasts and updates on Aurora Borealis activity and visibility in different regions. 2. Mobile Apps: There are several mobile apps available for both iOS and Android devices that offer real-time updates, notifications, and forecasts for the Northern Lights. Examples include My Aurora Forecast & Alerts, Aurora Alerts, and Aurora Watch. 3. Social Media: Platforms like Twitter, Instagram, and Facebook have dedicated Aurora Borealis enthusiast groups, pages, and accounts that share updates, photos, and sightings. Following these accounts can keep you informed about recent Northern Lights activity. 4. Astronomy
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Simultaneous X-ray and infrared observations of the galactic center

The supermassive black hole (SMBH) at the center of our Milky Way galaxy, Sagittarius A*, is by far the closest such object to us, only about 25 thousand light-years away. Although not nearly as active or luminous as other SMBHs, its relative proximity provides astronomers with a unique opportunity to probe what happens close to the "edge" of a black hole. Monitored in the radio since its discovery and more recently in the infrared and the X-ray, Sgr A* appears to be accreting material at a very low rate, only a few hundredths of an Earth-mass per year. Its X-ray emission is persistent, probably resulting from the rapid motions of electrons in the hot accretion flow associated with the black hole. Once a day there are also flares of emission that are highly variable; they appear more often in the infrared than in X-rays. Some submillimeter wavelength flares have also been tentatively linked to IR flares, although their timing seems to be delayed with respect to infrared events. Despite these intensive observational efforts, the physical mechanisms producing flaring around this SMBH are still unknown and are the topic of intense theoretical modeling.

from Astronomy News - Space News, Exploration News, Earth Science News, Earth Science https://ift.tt/2U6XSaF
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