CG4: A Ruptured Cometary Globule . ... Credit Copyright: Josch Hambsch Explanation: Can a gas cloud eat a galaxy? ... The odd looking "creature" or "hand" extending down from the top of the above photo is a gas cloud known as a cometary globule . This globule, however, has ruptured. Cometary globules are typically characterized by dusty heads and elongated tails . ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ... A service of: LHEA at NASA / GSFC . ...