Year of the Comet
Comet C/2011 L4 (PANSTARRS)

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Web Extras

NASA’s newest eye on the Sun

The Solar Dynamics Observatory is viewing the Sun’s magnetic field from its origin beneath the surface to the rarefied gas in the corona.
By Richard Talcott
Published: March 28, 2011

NASA’s Solar Dynamics Observatory (SDO) offers something the other spacecraft can’t match — the ability to take images in rapid succession so that scientists can combine them into seamless time-lapse movies. For example, SDO’s Atmospheric Imaging Assembly (AIA) captures eight full-disk solar images every 10 seconds. And AIA takes those images at 10 different wavelengths, from visible light to the extreme ultraviolet. We present here two videos compiled from AIA images.

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