These images of the Cone Nebula (top), and the Carina Nebula (bottom) are other examples of dark nebulae. Radiation from hot, massive stars is carving the gaseous landscape of both nebulae. Although dark nebulae have different shapes, they are all made up of cold gas that does not give off any visible light.
The CONE NEBULA: NASA, H. Ford (JHU), G. Illingworth (UCSC/LO), M. Clampin (STScI), G. Hartig (STScI), the ACS Science Team, and ESA;
The CARINA NEBULA:
NASA, ESA, N. Smith (University of California, Berkeley), and The Hubble Heritage Team (STScI/AURA)