The story describes Betelgeuse as “the red giant that marks Orion’s left shoulder.” Reader Chris Jespersen wrote: “I often see Betelgeuse on Orion’s right shoulder…. Am I mistaken?” ...

Red supergiant stars such as Betelgeuse and Antares are the astrobiological ... The problem describes the apparent lack of high-luminosity progenitors detected in supernova pre-images, write ...

With February’s winter nights regularly dropping below freezing, it’s tempting to take the easy way out and just stay inside.

The High-Luminosity LHC, which is expected to be operational after 2025, will increase the LHC’s luminosity by a factor of 10. Luminosity is an important indicator of the performance of an accelerator ...

The conclusions arrived at by Dr. Frankland are that it is not solid particles which produce luminosity, but that the intensity of a flame depends on the radiation of dense but transparent ...