Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. On a clear, moonless night, you might be able to see thousands of ...

Stellar color is primarily determined by the star's surface temperature; hotter stars emit more blue light, while cooler stars emit more red light, mirroring the behavior of a propane flame. Stars are ...

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 ...

"This event quite literally looks like nothing anyone has ever seen before." Astronomers have used a new type of extreme supernova in which a massive star was stripped right "down to the bone" to ...

Scientists who were surveying a catalog of gas clouds spotted something strange: five "blue blobs" composed of young blue stars in the Virgo galaxy cluster. Unusually, these stars were completely ...

DOVER, DE- The legacy of Annie Jump Cannon, a pioneering Dover native who revolutionized stellar classification, is being remembered today. Cannon, born 161 years ago on this day in 1863, made ...