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A pedestrian photographs the White House through a fence covered in protest signs, Monday, Nov. 2, 2020, on a section of 16th Street renamed Black Lives Matter Plaza in Washington, on the day before the U.S. election. (AP Photo/John Minchillo) 251

A mysterious cigar-shaped object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth, astronomers from Harvard University have suggested.The object, nicknamed 'Oumuamua, meaning "a messenger that reaches out from the distant past" in Hawaiian, was first discovered in October 2017 by the Pan-STARRS 1 telescope in Hawaii.Since its discovery, scientists have been at odds to explain its unusual features and precise origins, with researchers first calling it a comet and then an asteroid, before finally deeming it the first of its kind: a new class of "interstellar objects."Now, a new paper by researchers at the Harvard Smithsonian Center for Astrophysics raises the possibility that the elongated dark-red object, which is 10 times as long as it is wide and traveling at speeds of 196,000 mph, might have an "artificial origin.""'Oumuamua may be a fully operational probe sent intentionally to Earth vicinity by an alien civilization," they wrote in the paper, which has been submitted to the Astrophysical Journal Letters.The theory is based on the object's "excess acceleration," or its unexpected boost in speed as it traveled through and ultimately out of our solar system in January 2018."Considering an artificial origin, one possibility is that 'Oumuamua is a light sail, floating in interstellar space as a debris from an advanced technological equipment," wrote the paper's authors, suggesting that the object could be propelled by solar radiation.The paper, written by Abraham Loeb, professor and chair of astronomy, and Shmuel Bialy, a postdoctoral scholar, at the Harvard Smithsonian Center for Astrophysics, points out that comparable light-sails already exist on earth."Light-sails with similar dimensions have been designed and constructed by our own civilization, including the IKAROS project and the Starshot Initiative. The light-sail technology might be abundantly used for transportation of cargos between planets or between stars."In the paper, the pair theorize that the object's high speed and its unusual trajectory could be the result of it no longer being operational."This would account for the various anomalies of 'Oumuamua, such as the unusual geometry inferred from its light-curve, its low thermal emission, suggesting high reflectivity, and its deviation from a Keplerian orbit without any sign of a cometary tail or spin-up torques."'Oumuamua is the first object ever seen in our solar system that is known to have originated elsewhere.At first, astronomers thought the rapidly moving faint light was a regular comet or an asteroid that had originated in our solar system.Comets, in particular, are known to speed-up due to a process known as "outgassing," in which the sun heats up the surface of the icy comet, releasing melted gas. But 'Oumuamua didn't have a "coma," the atmosphere and dust that surrounds comets as they melt.Multiple telescopes focused on the object for three nights to determine what it was before it moved out of sight. 3063

A new service aims to help families stop identity fraud of children.According to a report from Javelin Strategy & Research, more than 1 million children were victims of identity theft in 2017. Two-thirds of those children were 7 or younger.Starting next month, parents can check and freeze their child’s credit files, without having to pay.First, go to identitytheft.gov to begin. Then, select the “Child Identity Theft” option under the “Special Forms of Identity Theft” section.A red flag to watch for is if your child has a credit report; they should not at an early age. The website will guide you on how to obtain a credit report through Experian, Trans Union and Equifax.If your child does not have a credit file, experts recommend you start one and then freeze it.Families can start using this service on Sept. 21. 833

A powerful nor'easter morphed into a "bomb cyclone" Friday as it hammered the East Coast with a ferocious mix of howling winds, drenching rain, some snow and surging waves."Take this storm seriously!" the National Weather Service in Boston warned via Twitter. "This is a LIFE & DEATH situation for those living along the coast, especially those ocean-exposed shorelines."RELATED:?'Bomb cyclone' pounds east coast with heavy flooding, high winds  462

A New Jersey woman thought her diamond wedding ring was lost forever when she accidentally flushed it down the toilet nine years ago.But thanks to a public works employee with a keen eye she was reunited with it.Paula Stanton, 60, received the gold ring encrusted with several diamonds from her husband as a gift for their 20th wedding anniversary. Nine years ago while she was cleaning, the ring slipped off her finger and down the drain it went."It was heartbreaking," Stanton told CNN affiliate WPVI. "I was embarrassed to tell my husband because it was meaningful."Her husband bought her duplicate ring as a replacement, but Stanton said she always hoped that maybe one day the original would be found.Two years ago, she talked to Ted Gogol of the Somers Point Public Works Department and explained what had happened. Gogol told her he had never come across the ring but would keep her in mind.Last month, as he was working on a pipe about 400 feet away from Stanton's house, Gogol saw something glimmer and shine in the muck. He plucked the shiny metal object out of the pipe, cleaned it off, and sure enough it was the long-lost diamond ring."That ring didn't want to leave her family," Gogol told WPVI. "There are so many things that could have happened. It could have been washed away, it could have been crushed, but it was just meant to be."Stanton couldn't believe the news when she saw a note on her door from the public works department.When Gogol brought her the ring she said, "You are like a Christmas angel."Stanton now wears both rings and vows not to lose them. 1593