... The Iron Tail of Comet McNaught . ... 4.05.2007 . ... SECCHI / STEREO , NASA Explanation: Outstanding in planet Earth's sky early this year, Comet McNaught is captured in this view from the STEREO A spacecraft. ... A separate, fainter, arching tail just to the left of the dust tail was initially thought to be an example of a common ion tail , formed by electrically charged atoms carried away from the comet by the solar wind . ... May 2007 . ... Publications with keywords: Comet McNaught - comet tail...