Today's Image

Our sun for one year

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October 27, 2013

In the spring of 2010, NASA’s Solar Dynamics Observatory, or SDO, provided its first views of the sun. Since then the spacecraft has had virtually unbroken coverage of our star, capturing one image every 12 seconds in 10 different wavelengths.

This is a composite of 25 SDO images taken from April 2012 to April 2013. Bright regions indicate solar activity, common near the equator.

Watch a video of 1,000 days of the sun in three minutes

Find out more about this image from NASA

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October 27, 2013

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Today's Image

Eleanor Imster

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About the Author:

Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the award-winning EarthSky radio series almost since it began until it ended in 2013. She and her husband live in Tennessee, where they enjoy guitar playing and singing. They have 2 grown sons.