Herschel reveals filaments in the Serpens Core by europeanspaceagency (via http://flic.kr/p/D6KpDo )
Herschel reveals filaments in the Serpens Core by europeanspaceagency (via http://flic.kr/p/D6KpDo )
Herschel reveals filaments in the Serpens Core by europeanspaceagency (via http://flic.kr/p/D6KpDo )