A star 215 million light-years away has been obliterated by a supermassive black hole, making it the closest observation to date of stellar spaghettification.
Spaghettification doesn’t sound very scientific, but it’s a fairly accurate description of what actually happens.
A doomed star caught in the orbit of a supermassive black hole will eventually hit a kind of gravitational sweet spot that turns everything to shit. No longer capable of keeping its physical integrity, the star begins to rapidly collapse in a process known as a fast-evolving tidal disruption event. When this happens, stellar debris bursts out from the star, forming a long, thin stream, half of which gets sucked toward the black hole; the other half is blown back into space. The thin stream eventually catches up to and slams into itself, releasing energy and
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Sep 30, 2020 (WiredRelease via Comtex) — Opportunity Assessment For Complex Oxide Sputtering Target Market Value Statistics and Facts:
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A new study authored by Southwest Research Institute scientists Rodrigo Leiva and Marc Buie reveals the binary nature of a trans-Neptunian object (TNO). Leiva and Buie utilized data obtained by the Research and Education Collaborative Occultation Network (RECON), a citizen science research net-work dedicated to observing the outer solar system. The study was published this month in The Astrophysical Journal.
Trans-Neptunian objects (TNOs) are small icy bodies that orbit the Sun beyond Neptune. Binary TNOs occur when two of these objects orbit each other while together or-biting the Sun. Leiva and Buie discovered two objects in a particularly close gravitational configuration. The pair was detected using a stellar occultation, which occurs when an object passes between Earth and a distant star which hides, or “occults,” the star from view. Observers located in the path of the object’s shadow can record the star blinking out and reappearing. The length of time
Sept. 25 (UPI) — For the first time, scientists have observed conscious processes in the brains of crows. Until now, the neural origins of subjective experience have only been observed in humans and other primates.
“The results of our study opens up a new way of looking at the evolution of awareness and its neurobiological constraints,” lead researcher Andreas Nieder, professor of animal physiology at the University of Tübingen in Germany, said in a news release.
Previous brain imaging studies have shown the ability of humans and the primates to consciously perceive sensory input is located in the cerebral cortex.
But the brains of most animals are structured quite differently than those of humans and nonhuman primates. Most animals don’t have a cerebral cortex.
For the latest study, researchers in Germany wanted to determine whether conscious processes could originate brains without cerebral cortexes. To find out, scientists recorded the neural