Betelgeuse, the second-brightest star in the constellation Orion, is a giant star whose strange dimming has sparked debate over when it will collapse and explode in a massive supernova. Now, however, ...

Science: A recent study suggests that the enigmatic dimming and brightening patterns of Betelgeuse, a red supergiant star on ...

But what about the biggest star in the universe? You're going to need more than just a telescope to get a glimpse of this hypergiant star. Here is what you need to know about the biggest star in ...

Each Monday, I pick out North America’s celestial highlights for the week ahead, which include a conjunction between the moon ...

It's a triple star system, with the point of light you see actually the combined brightness of Polaris Aa (a yellow supergiant star) and the smaller Polaris Ab orbiting each other and together ...

Although the hypothesis needs visual confirmation, a second star wouldn’t be atypical for a red supergiant like Betelgeuse, and could explain the behavior of the star’s long secondary period ...

A blue supergiant (BSG) is a hot, luminous star, often referred to as an OB supergiant. They have luminosity class I and spectral class B9 or earlier. Blue supergiants are found towards the top left ...

Combined with disagreements about how far away Betelgeuse is, this means that we don't have a reliable estimate for the size of the most famous supergiant star, one of the brightest in the sky ...

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Although the hypothesis needs visual confirmation, a second star wouldn’t be atypical for a red supergiant like Betelgeuse, and could explain the behavior of the star’s long secondary period (LSP).