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Public health officials are investigating an E. coli outbreak that has infected at least 17 people in eight states, the US Centers for Disease Control and Prevention 178

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

ST. LOUIS, Missouri — Planned Parenthood earlier this week sued the state of Missouri for threatening to pull its license to operate and conduct abortion procedures. If the clinic in St. Louis closes, Missouri would become the first state in the nation without an abortion clinic.“This is not a drill. This is not a warning,” said Dr. Leana Wen, president and CEO of Planned Parenthood Federation of America, in a news release. “This is a real public health crisis. This week, Missouri would be the first state in the country to go dark — without a health center that provides safe, legal abortion care.”Planned Parenthood said the Missouri Department of Health and Senior Services is refusing to renew the clinic’s license, claiming it is non-compliant.Outside of the clinic Tuesday, pro-life supporters distributed information, much like any other day. But inside the clinic, Planned Parenthood officials were gearing up for another legal fight. "Always moving the goalpost on us, always reinterpreting certain regulations,” said Dr. Colleen McNicholas with Planned Parenthood. McNicholas is the only doctor in Missouri who performs abortion procedures. “One in four women will have an abortion in their life. That is a lot of people,” McNicholas said. “It is an incredibly common and safe procedure and one that in just a few minutes allows me to help people get to a better place.” On Friday, Republican Gov. Mike Parson 1437

SpaceX wants to compete with its arch rival in the lucrative business of launching ultra-heavy satellites into space. That's why the second-ever launch of its Falcon Heavy rocket — and the first to carry a payload for a paying customer — will be a key milestone for 278

Sometimes things aren't always what they seem. Take the case of a "burglary in progress" call in Oregon.Sheriff's deputies in Washington County received a recent 911 call from a woman who said someone had broken into her home and locked themselves in her bathroom.She told police she could see shadows moving under the door.Deputies responded to the scene with their trusty K-9 officer, ready to take down a burglar. They could hear rustling noises coming from behind the door, but the suspect wasn't responding to commands to come out with their hands up.So with guns drawn, deputies opened the door, ready to pounce. Instead they were met by a Roomba, a robotic vacuum cleaner, that appeared to be trapped inside."We breached the bathroom door and encountered a very thorough vacuuming job," the sheriff's office said in a Facebook post Tuesday.The case is now closed -- but not before the sheriff's office shared a "captured" photo of the culprit. 994