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Scientists identify new shark species in the Atlantic Ocean

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Sixgill sharks are among the oldest creatures on Earth, with ancestors dating back to over 250 million years, well before dinosaurs.   Scientists at the Florida Institute of Technology have identified and confirmed the existence of a new shark species residing in the Atlantic Ocean. For confirmation, scientists used genetic testing and named the species “Atlantic sixgill shark.” The shark is different than its counterparts in the Indian and Pacific Oceans and measures up to 6 feet in length. “We showed that the sixgills in the Atlantic are actually very different from the ones in the Indian and Pacific Oceans on a molecular level, to the point where it is obvious that they’re a different species even though they look very similar to the naked eye,” said Toby Daly - Engel, Assistant Professor and shark biologist at the Florida Institute of Technology. Atlantic sixgill sharks are far smaller than their Indo-Pacific relatives, which can grow to 15 feet o...
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Space Astronomers Spy Swarms of The Massive Black Hole At the Centre of Milky Way

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For the first time astronomers have glimpsed a long-predicted population of black holes lurking at the heart of the Milky Way. Scientists already knew our galaxy’s core holds a supermassive black hole weighing millions of times more than our sun, and that this great beast is enveloped by a diverse entourage of lesser companions. Trapped in its gravitational clutches, run-of-the-mill stars whip around this gargantuan black hole like fireflies in a hurricane. So, too, do astrophysical exotica such as neutron stars and white dwarfs—the remnants left by normal stars when they die. Presumably black holes should be there as well, either born on the galactic center’s doorstep from the deaths of massive stars or arriving via migration from farther out. Such black holes should each weigh 10 to 20 times more than our sun. That bulk would make them behave a bit like heavy pebbles outpacing fine silt to the watery bottom of a well, jostling through the lighter surrounding stars to reach stab...
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‘It’s the end of science’: Infinite possible futures exist in certain black holes, study finds

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Should a person venture into a specific type of black hole, it may be able to provide them with infinite possible futures, according to a study published Jan. 17. The study focused on the “ fate of Cauchy horizons”  — whether or not someone who approaches these horizons would survive based on the exchange of energy within and beyond the black hole. Peter Hintz, a UC Berkeley postdoctoral fellow in mathematics who contributed to the study, used a theoretical, highly charged black hole. “Normally, when physics works as it is supposed to, if you know your position and velocity, and those of anything that might influence you, you can compute, at least in principle, what will happen,” said study contributor Aron Jansen in an email. “This is what breaks down at a Cauchy horizon; we simply don’t know what will happen (and) in that sense it can be anything.” It is possible to travel beyond the event horizon of a highly charged black hole and enter the Cauchy horizon, acc...
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