In 1181 AD, a bright "guest star" was observed to linger in the sky for around six months. Nearly 850 years later, the likely ...

A: Supernova 1987A is a supernova remnant in the Large Magellanic Cloud, the Milky Way’s largest satellite galaxy. The remnant was created when a massive star exploded — an event we saw here on Earth ...

Researchers have found white dwarf stars with masses close to the maximum stable mass (called the Chandrasekhar mass) are likely to produce large amounts of manganese, iron, and nickel after it orbits ...

Twinkle, twinkle, little star. How I wonder what you, wait a minute, why are you twinkling so much? Um, guys, that's no ...

Eight years ago, an astronomical observatory located high on a hill overlooking a region famous for a popular cheese, peered into the constellation Pisces only to discover proof of a star going ...

NASA scientists may have finally figured out why a famous supernova resembles a gigantic glob of cotton candy. The cosmic explosion, named Tycho’s Supernova after the 16th-century astronomer, has long ...

James Webb has spotted the most distant supernova ever seen, exploding just 730 million years after the Big Bang, offering ...

An artist's conception of a single-degenerate Type Ia supernova scenario. Due to the stronger gravitational force from the white dwarf on the left, the outer material of the bigger, slightly evolving ...