Another beautiful image from Terry Hancock at Down Under Observatory.
7000 light-years distant in the constellation of Cassiopeia lies the emission nebula colloquially known as the Soul Nebula. The gasses (mostly hydrogen) that comprise the nebula are being ionized by the stars within the region and as a result, the gasses glow, much like a neon sign.
The pressures exerted upon the material by the stars nearby are causing the material to become compressed. When enough of the gas becomes highly compacted, it triggers the birth of new stars. In effect, this is a beautiful snapshot of a multimillion-year process of an enormous cloud of dust and gas transforming itself into new stars.
— written by Adam Stirek