Located in the constellation of Orion, the Hunter, the Horsehead Nebula is part of a dense cloud of gas in front of an active star-forming nebula known as Image: T.Rector (NOAO/AURA/NSF) and Hubble Heritage Team (STScI/AURA/NASA)
The Elephant Trunk Nebula. The Elephant Trunk is a dense, elongated cloud of gas inside a bright cluster of stars known as IC The trunk conceals many young protostars that are in the process of forming.
The Flame Nebula. The Flame Nebula sits on the eastern hip of Orion the Hunter, a constellation most easily visible in the northern hemisphere during winter evenings. This view of the nebula was taken by WISE, NASA’s Wide-field Infrared Survey Explorer.
Seeds of massive black holes found at center of the Milky Way : A conceptual image of the newly discovered “large star cluster buried in dust.” It is considered that IMBHs are formed at the center of the cluster.
This artist's concept illustrates a supermassive black hole with millions to billions times the mass of our sun. Supermassive black holes are enormously dense objects buried at the hearts of galaxies. Image by NASA/JPL-Caltech
By using certain types of active black holes that lie at the center of many galaxies, researchers have developed a method with the potential to measure distances of billions of light years with a high degree of accuracy.