A new look at radio maps of the sky shows a pronounced tilt, called a dipole, that astronomers are still unable to explain ...

An unusual cold spot in the oldest radiation in the universe, the cosmic microwave background, may be caused by a cosmic defect created just after the Big Bang, a Spanish and U.K. research team has ...

Could black holes help explain the origins of high-energy cosmic radiation? The universe is filled with many forms of ...

Black holes are eaters of all things, even radiation. A new study published in Physical Review Letters suggests that black ...

Modern astronomy has clung to the belief that the relativistic outflows or jets, responsible for the existence of electromagnetic radiation of particularly high energies, are located in the nuclei of ...

Astronomers have found a new and original method for measuring the cosmic microwave background's temperature when the Universe was still in its infancy. They confirm in their new study the early ...