galaxy

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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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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Astronomers have for the first time captured a glimpse of the vast, web-like network of diffuse gas that links all of the galaxies in the cosmos. Leading cosmological theories suggest that galaxies are cocooned within gigantic, wispy filaments of gas. This “cosmic web” of gas-filled nebulas stretches between large, spacious voids that are tens of…

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Astronomers have discovered the densest galaxy ever seen, and at 54 million light years away, it’s in our galactic neighborhood. Using the combined imaging capabilities of ground-based observatories with the high-flying Hubble Space Telescope and its cousin, the Chandra X-Ray Observatory, the ultra-compact dwarf galaxy known as M60-UCD1 turns out to be 15,000 times denser…

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Astronomers have discovered the densest galaxy ever seen, and at 54 million light years away, it’s in our galactic neighborhood. Using the combined imaging capabilities of ground-based observatories with the high-flying Hubble Space Telescope and its cousin, the Chandra X-Ray Observatory, the ultra-compact dwarf galaxy known as M60-UCD1 turns out to be 15,000 times denser…

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Heading towards the end of July, a comet poses for a deep-sky photo op, while planets parade from dusk to dawn, and some shooting stars whet skywatchers appetite. Venus and the Lion’s Heart.  About a half hour after sunset on Monday, June 22, look for Venus very close to the bright star Regulus—the lead member…

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Heading towards the end of July, a comet poses for a deep-sky photo op, while planets parade from dusk to dawn, and some shooting stars whet skywatchers appetite. Venus and the Lion’s Heart.  About a half hour after sunset on Monday, June 22, look for Venus very close to the bright star Regulus—the lead member…

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  A team of international astronomers are investigating what looks like the impending death of a dwarf galaxy 54 million light years away. The scientists were clued in by a trail of fireballs streaming thousands of light years behind the small galaxy known as IC 3418. The astronomers liken these bright blobs of gas, lit…

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  A team of international astronomers are investigating what looks like the impending death of a dwarf galaxy 54 million light years away. The scientists were clued in by a trail of fireballs streaming thousands of light years behind the small galaxy known as IC 3418. The astronomers liken these bright blobs of gas, lit…

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