An image from the first batch of looks at the sun from NASA's Solar Dynamics Observatory, in 2010. Credit: Goddard Space Flight Center Scientific Visualization Studio and the Solar Dynamics ...

A brilliant ... the sun just after sunset, from the comet's head (called the nucleus) on the horizon. The solar wind also blows ions of the comet, creating second ion tail. Breaking space news ...

A brilliant comet lights up the night sky over ... They are icy wanderers from the outer solar system left over from the formation of the sun its planets, including Earth. Because comets like ...