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The Daniel K. Inouye Solar Telescope is now open for business. And by "business" I mean SCIENCE. The DKIST (as those in the know call it) is the world's largest telescope dedicated to looking at the Sun: It uses a massive 4-meter mirror to observe our nearest star! Mind you, looking at the Sun with your eyeball is a bad idea, and even using binoculars is a great way to boil your vitreous humor, so using a huge telescope may seem like a bad idea.

A solar storm that erupted from the sun on Monday (Dec. 20) may boost northern lights displays around the north pole just ahead of Santa's trip this weekend.

A solar storm that erupted from the sun on Monday (Dec. 20) may boost northern lights displays around the north pole just ahead of Santa's trip this weekend.

On Dec 17, M class solar flare blasted the Earth with both X-rays and UV radiation after an eruption from the Sun, prompting a shortwave radio blackout across part of the world; NOAA forecasters say there could possibly be more M-class flares. Active Region-2911, the source of the solar flare, is expected to produce more flares.

The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.