How Dark Will It Get During The August Total Eclipse?

Total solar eclipse on the island of Svalbard in 2015. The planet Venus is visible off to the left. Shadow bands flicker across the foreground seconds before totality. They form when the last tiny bit of sun refracts through air pockets of different densities and temperatures, creating a series of undulating bands of light. Toss a…
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See What The August Eclipse Will Look Like … From Anywhere

There’s so much out there about the August 21 total solar eclipse, it’s like swimming through mud trying to find simple, essential information. But let’s give it a try. Lots of us want to know how much of the sun will be covered from wherever we might happen to be that day. Except for the narrow…
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What Will The August 21 Total Eclipse Look Like From Space?

It’s now less than a month before the August 21 total solar eclipse. Many of us have booked rooms or campsites and will drive hundreds of miles to reach the path of totality, where the moon will cover 100% of the sun. On a map, it looks like a black ribbon just 73 miles wide but stretching almost…
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Big Sunspot Sends Blast Our Way, Storm Expected Sunday

After a few days of all show and no action, that big, scenic sunspot group let loose a powerful M-class flare early yesterday evening. The blast sent a giant cloud of solar plasma — electrons and protons bundled with magnetic energy — in Earth’s direction that’s expected to arrive Sunday (July 16) around lunch time and…
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Try Out Your Eclipse Glasses On This Big Sunspot

A rapidly growing sunspot that rotated around the Sun’s limb several days ago has now expanded to about 78,000 miles (125,000 km) across, only 10,000 miles shy of Jupiter’s girth. It was easy to see with the naked eye as a small, dark imperfection on the sun’s otherwise spotless face through my #14 welder’s glass…
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