Original sentence: Deep Impact will conduct both, first during the cruise phase to Hartley 2 (EPOCh) and secondly at flyby (DIXI).EPOXI combines two targets.NASA's EPOXI is a University of Maryland-led unmanned space mission that uses the existing Deep Impact vehicle to begin a new series of observations.Scientists theorize Comet Boethin may have broken up into pieces too small for detection.The new mission was originally announced in NASA Press Release 07-147 on 3 July 2007 as including flyby of Comet Boethin, but Boethin was too small and faint for its orbit to be calculated accurately, so the mission was subsequently retargeted to Hartley 2.These are the Deep Impact Extended Investigation (DIXI) and the Extrasolar Planet Observation and Characterization (EPOCh)
Edited sentence: Deep Impact will conduct both missions, the Extrasolar Planet Observation and Characterization during the cruise phase to Hartley 2, and the Deep Impact Extended Investigation at fly-by.EPOXI combines two targets: the Deep Impact Extended Investigation (DIXI), and the Extrasolar Planet Observation and Characterization (EPOCh).NASA's EPOXI is a University of Maryland-led unmanned space mission which uses the existing Deep Impact vehicle to begin a new series of observations.The new mission was originally announced on 3 July 2007 as including flyby of Comet Boethin, but Boethin was too small and faint for its orbit to be calculated accurately, so the mission was subsequently retargeted for a Hartley 2 fly-by