Surprising new class of “hypervelocity stars” discovered escaping the galaxy | Research News @ Vanderbilt | Vanderbilt University:
“These new hypervelocity stars are very different from the ones that have been discovered previously,” said Vanderbilt University graduate student Lauren Palladino, lead author on the study. “The original hypervelocity stars are large blue stars and appear to have originated from the galactic center. Our new stars are relatively small – about the size of the sun – and the surprising part is that none of them appear to come from the galactic core.”
“It’s very hard to kick a star out of the galaxy,” said Holley-Bockelmann. “The most commonly accepted mechanism for doing so involves interacting with the supermassive black hole at the galactic core. That means when you trace the star back to its birthplace, it comes from the center of our galaxy. None of these hypervelocity stars come from the center, which implies that there is an unexpected new class of hypervelocity star, one with a different ejection mechanism.”
Friday, March 7, 2014
Astronomers say they've spotted lonesome planet without a sun - NBC News.com
Astronomers say they've spotted lonesome planet without a sun - NBC News.com
Eighty light-years from Earth, there's a world that's just six times more massive than Jupiter, floating all alone without a sun to keep it warm, astronomers reported Wednesday.
Such free-floaters have been reported before, but in the past, it hasn't always been clear whether these were orphaned planets or failed stars. This time, the scientists say they're sure it's a planet.
Prehistoric Dog Lovers Liked Seafood, Jewelry, Spirituality : Discovery News
Prehistoric Dog Lovers Liked Seafood, Jewelry, Spirituality : Discovery News
An analysis of ancient dog burials finds that the typical prehistoric dog owner ate a lot of seafood, had spiritual beliefs, and wore jewelry that sometimes wound up on the dog.
An analysis of ancient dog burials finds that the typical prehistoric dog owner ate a lot of seafood, had spiritual beliefs, and wore jewelry that sometimes wound up on the dog.
Monday, August 19, 2013
Earliest known iron artifacts came from meteorite, researchers say | The Space Reporter
Earliest known iron artifacts came from meteorite, researchers say | The Space Reporter
According to a news release from the University College London, researchers have demonstrated that ancient Egyptian iron beads kept at the UCL Petrie Museum were made from pieces of meteorites, as opposed to iron ore. The ancient Egyptian beads, which chart their inception to outer space, also precede the rise of iron smelting by 2,000 years.
Painstakingly crafted into thin sheets before being shaped into tubes, the nine beads were initially joined together into a necklace along with other enticing minerals like gold and gemstones, showing the high value of this alluring material more than 5,000 years ago.
Friday, May 17, 2013
Wednesday, April 10, 2013
Swallow's Nest
Swallow's Nest - Wikipedia, the free encyclopedia
The Swallow's Nest (Ukrainian: Ластівчине гніздо, Lastivchyne hnizdo)[nb 1] is a decorative castle located between Yalta and Alupkaon the Crimean peninsula in southern Ukraine. It was built between 1911 and 1912 in Gaspra, on top of 40-metre (130 ft) high Aurora Cliff, to a Neo-Gothic design by the Russian architect Leonid Sherwood.[nb 2] The castle overlooks the Cape of Ai-Todor of theBlack Sea and is located near the remnants of the Roman castrum ofCharax.[2] Swallow's Nest is one of the most popular visitor attractions in Crimea, becoming the symbol of Crimea's southern coastline.[3][4][5]
The building is compact in size, measuring only 20 m (66 ft) long by 10 m (33 ft) wide.[6] Its original design envisioned a foyer, guest room, stairway to the tower, and two bedrooms on two different levels within the tower. The interior of the guest room is decorated with wooden panels; the walls of the rest of the rooms are stuccoed and painted.[6]An observation deck rings the building, providing a view of the sea, and Yalta's distant shoreline.
Sunday, April 7, 2013
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