The ancient supercontinent of Rodinia turned inside out as the Earth swallowed its own ocean some 700 million years ago, new research suggests. Rodinia was a supercontinent that preceded the more famous Pangea, which existed between 320 million and 170 million years ago. In a new study, scientists led by Zheng-Xiang Li of Curtin University in Perth, Australia, argue that supercontinents and their superoceans form and break up in alternating cycles that sometimes preserve the ocean crust and sometimes recycle it back into Earth's interior. "We suggest that the Earth's mantle structure only gets completely reorganised every second supercontinent [or every other cycle] through the regeneration of a new superocean and a new ring of fire," Li wrote in an email to Live Science. The "Ring of Fire" is a chain of subduction zones around the Pacific, where the crust of the ocean grinds underneath the continents. Volcanoes and earthquakes are frequent around the Ring of Fire, lending it its … [Read more...] about Earth Once Swallowed Its Own Superocean. Could It Happen Again?
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Nearly 2,400 years ago, the philosopher Plato described Atlantis as a mighty state that possessed 10,000 chariots, advanced technologies, vast numbers of elephants and bulls, and a series of complex canals. And now, in a new documentary, a U.K.-based group claims to have discovered the ruins of this once-flourishing society on what is now the Atlantic coast of Spain. But one archaeologist said that the ruins likely belong to another ancient culture, and several researchers interviewed by Live Science could barely contain their exasperation when they heard the news of yet another Atlantis discovery. (People have made dozens of such claims over the years, locating the legendary society in Antarctica, Bolivia, Turkey, Germany, Malta, the Caribbean and elsewhere.) "Bless their hearts — if they're correct about this, that would be awesome," said Ken Feder, a professor of anthropology at Central Connecticut State University. "But here's my problem: As an archaeologist, I know that I … [Read more...] about Atlantis Found (Again)! And Exasperated Scientists (Again) Raise Their Eyebrows
For the first time ever, astronomers have found iron and titanium in the atmosphere of a planet outside the solar system. The exoplanet, named KELT-9b, is the hottest alien world ever discovered. The planet is so scorching, it's even hotter than most stars. This sweltering exoplanet, located about 620 light-years away from Earth in the constellation Cygnus, is what astronomers call an "ultrahot Jupiter." KELT-9b is a giant gas world like Jupiter, the largest planet in our solar system. But it's way bigger — it has three times the mass and twice the diameter of Jupiter — and it orbits extremely close to its hot parent star, KELT-9. "Ultrahot Jupiter" is an unofficial term for a hot Jupiter exoplanet with temperatures exceeding 3,100 degrees Fahrenheit (1,700 degrees Celsius). They "are so hot that they have some resemblance to being stars even though they're planets," Kevin Heng, an astrophysicist at the University of Bern in Switzerland who participated in the study, … [Read more...] about Iran and Titanium Found on ‘Ultrahot Jupiter,’ an Exoplanet First
Latest in PeripheralsNewsBest Deals: TCL 55" 4K TV For $379, $335 Off Google Pixel Phone by Tom's Hardware News TeamJun 29, 2018, 10:53 AMNewsTom's Hardware Weekly News Recap: June 29, 2018 by Nathaniel MottJun 29, 2018, 10:30 AMNewsPimax Misses Q2 Shipping Timeline, Swears Production Will Begin Soon by Kevin CarbotteJun 29, 2018, 9:15 AMNewsLeap Motion Made It Easier to Build Your Own Project North Star Headset by Kevin CarbotteJun 29, 2018, 6:15 AMReviewBenQ EX3501R 35" VA Curved FreeSync HDR Gaming Monitor Review: Good Gaming, Great Looks by Christian EberleJun 28, 2018, 6:00 PMNewsRift Reprieve: Judge Cuts $250 Million From Facebook's Debt to Zenimax by Kevin CarbotteJun 28, 2018, 8:00 AM RGB Gone Wild Picture 1 of 24 In the PC space, RGB is everywhere. Your cooling fans can breathe color into your hardware. Your case can dress your PC in a spectrum of luminescent style. Your fingers can dance across a keyboard that changes colors like a club floor. You can turn your … [Read more...] about 22 of the Coolest (and Strangest) RGB Lighting Products
Space is a dangerous place for humans: Microgravity sets our fluids wandering and weakens muscles, radiation tears through DNA and the harsh vacuum outside is an ever-present threat. But for materials that show incredible strength, transmit information with barely any loss, form enormous crystals or even grow into organs, the harshness of space can be the perfect construction zone. As the cost of spaceflight goes down, more of these materials may become cost-effective to make or study in space. And soon, more and more people might be carrying around objects built off the planet. [Top 10 Strangest Things in Space] "We generally make things by subjecting them to a different environment," said Andrew Rush, president and CEO of Made In Space, an in-space manufacturing company. "We make food by cooking it in fire, heating it up and causing chemical reactions. We make steel by heating things up at high temperature and maybe, depending on the steel, [in a] high-pressure environment. … [Read more...] about Making Stuff in Space: Off-Earth Manufacturing Is Just Getting Started