A newly discovered star system is breaking records — and helping scientists unravel the mysteries of an extreme type of planet known as hot Jupiters. In a paper published Aug. 14 in the journal Nature ...

If you were to compare planet Earth to the Sun, you'd find that you'd have to stack 109 Earths atop one another just to go from one end of the Sun to the other. Yet there are stars out there that are ...

Neutron stars are made out of cold ultra-dense matter. How this matter behaves is one of the biggest mysteries in modern nuclear physics. Researchers developed a new method for measuring the radius of ...

Neutron stars are the stellar corpses left behind when a massive star goes supernova. They’re unimaginably dense. A tablespoonful of neutron star placed on Earth’s surface would weigh roughly as much ...

Scientists studying the star Betelgeuse have determined that it's actually roughly 25% closer than previous estimates. The star is also slightly smaller than scientists assumed, though it still ...

The most common stars remain mysterious. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Paul M. Sutter is an astrophysicist at The Ohio State ...

Astronomers have discovered a star 600 light-years away that stretches the definition of what can even be considered a star. That's because EBLM J0555-57Ab, the smallest star ever discovered, is the ...

The biggest star in the universe (that we know of), UY Scuti is a variable hypergiant with a radius around 1,700 times larger than the radius of the sun. To put that in perspective, the volume of ...

Superfast changes to the intensity of a jet blasting out from a small black hole have been detected for the first time. When you purchase through links on our site, we may earn an affiliate commission ...