Mission Press ReleasesBall Aerospace's Deep Impact Spacecraft Headed to Comet Hartley 2 Ball Aerospace and Technologies Corp. - Friday, December 14, 2007 Posted on: 12/14/2007 6:57:03 PM PDTNASA Sends EPOXI Spacecraft on Mission to Comet Hartley 2 NASA HQ - Thursday, December 13, 2007 Posted on: 12/13/2007 4:48:47 PM PDT | No Mission Status Releases |