supernova

The ultimate age barrier has been broken. The oldest living star in the entire universe may have been discovered—one formed only one or two hundred million years after the Big Bang itself. The ancient star, born some 13.6 billion years ago, bests the previous record handily, by 400 million years, and offers a unique view into what…

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Things are rocking right now in our own galactic neighborhood. Backyard telescope users already knew about the Cigar Galaxy, or M82, located in the Great Bear constellation, Ursa Major. Now it has two new cosmic secrets to explore. Two weeks ago a supernova—a giant exploding star—was discovered by British university students within the galaxy, which is…

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A glimpse of a large asteroid comes to delight sky-watchers this month, silently sailing its way through a cosmic bull’s horns and past a famous supernova remnant. In the next few weeks, the asteroid Herculina, the 532nd asteroid to be discovered, will glow in the sky at a magnitude of brightness of about 10. That should…

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From exploding stars, barnstorming asteroids, and a buzzing beehive, the starry skies this week are filled with cosmic wonders to behold. Supernova Update: A surprise star exploded in a spiral galaxy 12 million light years from Earth and appears to be slowly brightening in the evening skies. The Cigar Galaxy or Messier 82 is host…

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Something has lit up the Cigar Galaxy, astronomers report, and it looks like an exploding star. The increasing brilliance of the supernova has thrilled the stargazing community, potentially becoming a viewing target within reach of binoculars in the next few days. The brightening supernova appears nestled within the neighboring, edge-on spiral galaxy, Messier 82 (M82),…

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