This gas needs an enormous amount of energy to shine — more than normal stars can supply. The discovery, based on data from ...

Also known as the Southern Pinwheel, M83 is 15 million light-years away from Earth and was discovered back in 1752. "With an apparent magnitude of 7.5, M83 is one of the brightest spiral galaxies ...

Aliens, black holes and far-off galaxies were some of the suggested explanations for a spectacular spiral light which appeared in the skies over Yorkshire and Lincolnshire on Monday. The ...