NASA's EPOXI mission took this image of Comet Hartley 2 November 2, 2010 from a distance of 1.4 million miles (2.3 million kilometers). The spacecraft flew by the comet November 4, 2010. The white blob and the halo around it are the comet's outer cloud of gas and dust, called a coma. At this distance, the spacecraft is capturing images with a resolution of about 14 miles/pixel (23 kms/pixel).