Rarest Stars in the Universe: Stars come in many forms, but some types are so rare that only a handful exist in our galaxy. For example, O-type stars account for just 0.00003% of the stars near the ...

University of Copenhagen astrophysicists help explain a mysterious phenomenon, whereby stars suddenly vanish from the night sky. Their study of an unusual binary star system has resulted in convincing ...

University of Copenhagen astrophysicists help explain a mysterious phenomenon, whereby stars suddenly vanish from the night sky. An unusual binary star system shows that massive stars can completely ...

One of the best places to study stars is inside “open clusters”, which are groups of stars that formed together from the same material and are bound together through gravity. Open clusters act as ...

A study of more than 26,000 white dwarf stars has confirmed a long-predicted but elusive effect in these ultra-dense, dying stars: Hotter white dwarfs are slightly puffier than cooler ones, even when ...

One of the best places to study stars is inside "open clusters," which are groups of stars that formed together from the same material and are bound together through gravity. Subscribe to our ...

For almost 50 years, astronomers have puzzled over the youthful appearance of stars known as blue stragglers. Blue stragglers are the timeworn Hollywood starlets of the cosmos: They shine brightly, ...

These Chandra images reveal how stars end their life in majesty Smithsonian Astrophysical Observatory The supernova that resulted in the creation of SNR 0509-67.5 occurred nearly 400 years ago for ...