sun

NASA Explains: The Difference Between CMEs and Solar Flares

by Nancy Atkinson September 22, 2014

This is a question we are often asked: what is the difference between a coronal mass ejection (CME) and a solar flare? We discussed it in a recent astrophoto post, but today NASA put out a video with amazing graphics that explains it — and visualizes it — extremely well. “CMEs and solar flares are […]

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Astrophoto: The Sun as a Work of Art

by Nancy Atkinson September 11, 2014

Here’s a solar flare with a little flair added! Astrophotographer Rick Ellis from Toronto, Canada created this “artsy” Sun by using a series of photoshop filters and effects with a combination of two images from the Solar Dynamics Observatory taken on April 12, 2013. He tinkered with the contrast at specific color ranges, applied “equalization,” […]

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A New Marker Might Better Track the Solar Cycle

by Shannon Hall September 5, 2014

Approximately every 11 years the Sun becomes violently active, putting on a show of magnetic activity for aurora watchers and sungazers alike. But the timing of the solar cycle is far from precise, making it hard to determine the exact underlying physics. Typically astronomers use sunspots to map the course of the solar cycle, but […]

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Enjoy This Eye-Meltingly Awesome Photo of Our Sun

by Jason Major August 29, 2014

Here’s yet another glorious photo of our home star, captured and processed by New York artist and photographer Alan Friedman on August 24, 2014. Alan took the photo using his 90mm hydrogen-alpha telescope – aka “Little Big Man” –  from his backyard in Buffalo, inverted the resulting image and colorized it to create the beautiful image […]

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How Do The Tides Work?

by Fraser Cain August 18, 2014

Anyone who lives close to ocean is familiar with the tides. And you probably know they have something to do with the Moon. But how do the tides work? Do other planets experience tides? Fraser Cain on Google+

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