Dr. Christopher Grasso is the principal engineer for Blue Sun Enterprises, Inc. He has developed software and sequences for a variety of deep space missions, including Spitzer Space Telescope, Mars Odyssey, MRO, Dawn, and Resource Prospector. He developed the Virtual Machine Language sequencing flight software for Spitzer, and versions have been used on fifteen deep space missions. He used VML to sequence the successful entry, descent, and landing of Mars Phoenix, and assists installing VML on other missions.