Turn them on to activate the following

CTRL A - Adds hit points, move points, attack points and defense points to selected ship.

CTRL B - Creates a battleship at the cursor.

CTRL C - Copys the selected ship.

CTRL E - Decreases morality.

CTRL G - Increases morality.

CTRL H - Heals selected ship and restores it's movement.

CTRL J - All human planets complete their military and social projects instantly.

CTRL L - Assigns all inhabitable planets and resources to the major races.

CTRL M - Adds $1000

CTRL O - Creates an anomoly at cursor (sometimes doesn't work, sometimes does)

CTRL P - Vastly increases the class of all planets in selected star.

CTRL S - finish research on current tech instantly.

CTRL SHIFT S - All techs except for final frontier are fully researched instantly.

CTRL T - Teleports selected ship to cursor.

CTRL U - Clears the fog of war.Taken from the main site

CTRL V - Creates random ship at cursor.

CTRL Y - Creates colony ship at cursor.

Above cheats submitted by Paul Rhodes