Traditionally, astronomers have grouped galaxies into two different categories: blue, which are young and actively forming stars, and red, which are older and have ceased star formation.

The observations found that HD 144812 is a rare post-red supergiant orbited by a companion star. The finding was reported in a paper published March 25 on the arXiv pre-print server. Yellow ...

Although the hypothesis needs visual confirmation, a second star wouldn’t be atypical for a red supergiant like Betelgeuse, ...

Look up to the southern sky tonight and spot the supergiant star in the constellation Orion. It's big, bright, and orange – and could be about to explode. Betelgeuse is a red giant star that ...

According to astronomers, the Betelgeuse red supergiant star, appears to be on its last legs due to its increasingly volatile behaviour in the past couple of years. Situated in the Orion constellation ...

When Betelgeuse, a red supergiant star in the constellation Orion ... What are Russia’s secret satellites doing in synchronized formation? 'Science’s biggest delivery': Martian soil set ...