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Since it landed on Mars in 2012 NASA's Curiosity rover has been exploring Gale Crater, a vast, dry ancient lake bed with a mountain at its center. Now, Curiosity has found sediments containing sulfate salt in the crater, which suggest it once held salty lakes.A range of salts have been found on Mars in different locations. Researchers interpret these as evidence of ancient brines. Salty water formations seemed to increase on the Martian surface as the planet transitioned to an arid climate 3.5 billion years ago.The new detection of sulfate salts came from sedimentary rocks dated to between 3.3 and 3.7 billion years ago. Curiosity has analyzed other, older rocks on Mars and didn't detect these salts in them.Researchers believe the salt is evidence of the crater's lake evaporating in the Red Planet's arid environment. They also believe studying younger rocks in the future could shed more light on how the Martian surface dried out.Gale Crater was created by an ancient impact, then filled in with sediment layers over time. Mount Sharp, the mountain at its center, was created by wind erosion of the hardened sediment layers. Those same layers act like chapters in the history of Mars and provide clues to its environment at each point in time.At the time the sulfate salts were present, lakes were probably scattered across the crater floor, fed by streams in the crater walls. Over time, the streams would overflow and then evaporate, trapped in a repetitive cycle taking place over millions of years.The findings were published Monday in the journal 1576

Someone gained access to the Ring security camera of a Mississippi family and used the speaker feature to harass their 8-year-old daughter, telling her he was Santa Claus and encouraging her to destroy the room.The horrifying ordeal is several recent incidents in which hackers have figure out a way to log into Ring accounts without the user's knowledge.Ashley LeMay told 385

Roger Stone, a longtime political strategist and friend of President Donald Trump, was sentenced to 40 months in prison on Thursday.Stone was also ordered to serve two years probation, pay a ,000 fine and complete 250 hours of community service.Stone's sentencing comes amid controversy in the Justice Department about Trump's public reactions to the case and the president's push for a light sentence.Late last year, Stone was 443

Sports fans may be looking for other viewing options after another company has decided to drop regional sports networks from its channel lineup. Streaming service YouTube TV announced on Thursday that it will drop a number of regional sports networks that carry the a large number of MLB, NHL and NBA games throughout the country. The drop goes into effect on Saturday. The channels affected are FOX Regional Sports Networks. In total, more than a dozen channels spread throughout the country will no longer be on YouTube TV. For instance, sports fans in New York will no longer get the YES Network to watch New York Yankees games, or viewers in Ohio will no longer see Cleveland Cavs, Cincinnati Reds, Columbus Blue Jackets and Cleveland Indians games on Fox Sports Ohio and Sportstime Ohio."We do not take this decision lightly," YouTube TV said. "This is a reflection of the rising cost of sports content. You may have noticed several other TV services have also decided to remove FOX Regional Sports Networks from their lineups."The networks are owned by Sinclair, which purchased the networks last summer. The cost of regional sports networks to cable, satellite and streaming services have dramatically increased in recent years. This is largely due to the contracts signed between networks and pro sports teams. According to the 1348

SEOUL, South Korea — South Korea is reporting its first death from a new virus, as the mayor of a southeastern city urges its 2.5 million people to stay inside as infections linked to a church congregation spike. The mayor of Daegu says citizens should wear masks even indoors if possible. The city and nearby areas have reported 56 new cases in the past two days. The mayor says the rising infections could soon overwhelm the city’s health system and is asking for urgent help from the central government. Health officials say many of the new patients went to services at a church that were attended by a previously confirmed virus patient or contacted her elsewhere. 680