Stevenson 218 is the largest known star in the universe, located about 18,900 light-years away in the constellation of Scutum and far surpassing even the sun in size and brightness. So immense that it ...

Space. It's really, really big. How big is it? Well, according to astronomers, the observable universe is around 92 billion light-years in diameter, but that's all we can see (hence the word ...

What is the biggest object in the universe? Learn more about the biggest objects in the universe, including galaxies, galaxy clusters, and dark matter.

The low carbon levels are particularly interesting, as previously discovered “pristine” or metal-poor stars generally ...

A star found in the Large Magellanic Cloud is remarkably unpolluted by heavier elements, suggesting it is descended from the ...

Not all stars are created equally. Astronomers believe that the first stars to form after the Big Bang were mostly made of ...