Many know the Great Orion Nebula (M42) in Orion's Sword as a bright diffuse nebula - a glowing cloud of cosmic gas illuminated by the Trapezium star cluster. But the Orion Nebula also has a dark ...

This image represents ten total hours of observation and was captured from the Dark Sky Alqueva ... dust shines the Pelican Nebula, an evolving cloud of gas and star formation.