Nice! This is Herschel’s look at NGC 7538 a giant cloud of hydrogen and bits of dust – a stellar nursery. The dust also shines in the far-infrared which works out great for Herschel, ESA’s far-infrared space observatory.
Have a look at the Simbad page for NGC 7538 for a different view of it (optical I think).
Be sure to pay a visit to ESA’s Star factory NGC 7538 for the particulars.