Cometary Globules In Orion . ... Credit Copyright: David Theil ( CASA ), IRAS Explanation: Intense ultraviolet light from massive, hot stars in the Orion region has sculpted and compressed clouds of dust and gas in to distinctively shaped Cometary Globules . Seen in this IRAS infrared image recorded at a wavelength sensitive to emission from dust, the elongated globules are easily visible along with a bright region which corresponds to the Trapezium star cluster . ... NASA Official: Jay Norris. ...