01 novembro 2016

Arp 299: Black Holes in Colliding Galaxies


Is only one black hole spewing high energy radiation -- or two? To help find out, astronomers trained NASA's Earth-orbiting NuSTAR and Chandra telescopes on Arp 299, the enigmatic colliding galaxies expelling the radiation. The two galaxies of Arp 299 have been locked in a gravitational combat for millions of years, while their central black holes will soon do battle themselves. Featured, the high-resolution visible-light image was taken by Hubble, while the superposed diffuse glow of X-ray light was imaged by NuSTAR and shown in false-color red, green, and blue. NuSTAR observations show that only one of the central black holes is seen fighting its way through a region of gas and dust -- and so absorbing matter and emitting X-rays. The energetic radiation, coming only from the galaxy center on the right, is surely created nearby -- but outside -- the central black hole's event horizon. In a billion years or so, only one composite galaxy will remain, and only one central supermassive black hole. Soon thereafter, though, another galaxy may enter the fray.

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Meet the last living person to have been born a subject of Queen...



Meet the last living person to have been born a subject of Queen Victoria.  When Queen Victoria died on January 22, 1901, she was head of a vast empire. Violet Brown was born in March of 1900, in Jamaica. She is a living link to the time when Britannia ruled the waves and Queen Victoria reigned as queen over about one-fourth of the world’s population. Interestingly, Violet’s head of state is still the queen of England – Queen Elizabeth II.

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Monstro de Gelo filmado em rio do Alasca

monstro-alasca

Um vídeo de uma criatura estranha em forma de serpente, que parece estar toda coberta de gelo, ganhou recentemente um burburinho nas redes sociais.

O evento peculiar foi registrado por Craig McCaa, do Bureau of Land Management (BLM), enquanto tirava fotos do rio Chena para ajudar a traçar as mudanças sazonais na paisagem.

“Eu não sei o que eu teria feito se eu tivesse em uma canoa ou algo assim”, disse ele. “Mas, olhando para ele de cima do barco, eu não me senti muito ameaçado.”

O ‘criatura’, que tinha cerca de 5 metros de comprimento, permaneceu semi-submersa no rio congelado durante todo o encontro e parecia ter uma quantidade surpreendente de gelo em suas costas.

“Eu pensei, inicialmente, e outras pessoas também pensavam, que poderia ser alguma corda que prendeu no barco com pedaços de gelo”, disse ele.

“Outras pessoas mencionaram que poderia ser algum monstro do mar desconhecido.”



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Eli Whitney made almost no money from his invention of the cotton gin. Copies of his patented gin...

Eli Whitney made almost no money from his invention of the cotton gin. Copies of his patented gin design quickly flooded the market from numerous manufacturers, and Whitney found it was impossible to sue all of the offenders.

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Prototype Capture System, Mock Asteroid Help Simulate Mission Sequence


A prototype of the Asteroid Redirect Mission (ARM) robotic capture module system is tested with a mock asteroid boulder in its clutches at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. The robotic portion of ARM is targeted for launch in 2021.

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TODAY IN THE HISTORY OF PSYCHOLOGYVisit –>...



TODAY IN THE HISTORY OF PSYCHOLOGY

Visit –> all-about-psychology.com for free psychology information and resources.

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