M8: The Lagoon Nebula . ... Credit Copyright: Processing: Tom Davis , Acquisition: Jim Misti Explanation: This beautiful cosmic cloud is a popular stop on telescopic tours of the constellation Sagittarius . ... Striking details can be traced through this remarkable picture, processed to reveal the Lagoon's range of filaments of glowing hydrogen gas and dark dust clouds along with the brighter, turbulent hourglass region at the upper right. ... NASA Web Site Statements, Warnings, and Disclaimers . ...