The observable universe is a ball-shaped region of the universe comprising all matter that can be observed from Earth or its space-based telescopes and exploratory probes at the present time, because ...

In Big Bang cosmology, the observable universe consists of the galaxies and other matter that can, in principle, be observed from Earth in the present day—because light (or other signals ...

A new way to study 3D maps of galaxies in the cosmos without compressing the data is revealing new information about the dark universe.

Crab Nebula has been constantly observed by Chandra ... infrared lights emerged from the universe. WISE used all its four infrared detectors to capture the picture, ie 3.4- and 4.6-micron light ...