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A Russian satellite believed to be part of Moscow’s nuclear anti-satellite weapon program appears to be malfunctioning, with erratic movements suggesting it may no longer be operational. The development could be a major blow to Russia’s military space ambitions, US analysts said. Cosmos 2553 was launched just weeks before Russia invaded Ukraine in 2022. Over the past year, it has shown signs of uncontrolled tumbling, according to radar data from LeoLabs and optical tracking shared by Slingshot Aerospace with Reuters. The satellite is believed to serve as both a radar tool for intelligence gathering and a platform for radiation testing....

Winter weather is making its presence known across the U.S. as millions of people deal with the onslaught of a long-duration, lake-effect snowstorm that has paralyzed communities downwind of the Great Lakes. And to make matters worse, rounds of arctic air will continue to invade the country and send temperatures tumbling below freezing in cities as far as the Southeast. The FOX Forecast Center said the arctic blast from Canada has been sweeping across the central and eastern U.S. Temperatures in cities in the northern Plains plummeted below zero over the weekend, and wind chills made it feel even colder....

The peso is tumbling after Mexico's president, Enrique Peña Nieto, says he won't meet with US president Donald Trump. The peso is down by 1.2% at 21.3175 per dollar as of 11:57 a.m. ET. The currency was up as much as 0.8% at 20.9358 per dollar around 8:50 a.m. ET. "This morning we have informed the White House that I will not attend the meeting scheduled for next Tuesday with the @POTUS," Peña Nieto tweeted , according to an online translation. This follows Trump's earlier tweet on Thursday morning: "The U.S. has a 60 billion dollar trade deficit with Mexico....

Using data from ESA's XMM-Newton X-ray observatory, an international group of astrophysicists has discovered a spinning neutron star that seems to be tumbling slowly - a find that could provide new insight into the evolution and structure of these super-dense objects. Spinning neutron stars, also known as pulsars, generally rotate on highly stable axes. Thanks to their periodic signals, emitted either in radio or X-ray wavelengths, they can serve as very accurate astronomical clocks. Regarding pulsar RX J0720.4-3125, however, the team found that over the past four and a half years, its temperature has been rising - until very recently,...

Convention Center Comes Tumbling Down In the end, the demise of the old Washington Convention Center resembled more of a deflation than an implosion -- the squat structure, at its tallest roughly the equivalent of a four-story building, didn't have far to fall. It died about 7:30 a.m. yesterday in a roughly 20-second ballet of crackling explosives, toppling walls and a large cloud of dust that marked the spot where on Dec. 10, 1982, city officials had hosted a grand opening reception. This time, Mayor Anthony A. Williams (D) presided over a gathering at the newer, flashier convention center a...