(CNN) -- The makers of BlackBerry devices, Research in Motion, are gearing up for a fight they can't afford to lose. On Wednesday at a press event in New York, the company will finally unveil its new smartphone operating system, BlackBerry 10, and a pair of new handsets -- one with a physical keyboard and another that's all touchscreen. But are there enough BlackBerry fans left out there to embrace a new kind of smartphone from a company that has fallen woefully behind the competition, both in sales and innovation? Many BlackBerry users in the United States are stuck with the device because it is issued by their employer, which has led to a cumbersome trend of people carrying two devices: a work phone and a personal one.

App selection is another key area that
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BlackBerry must address.


An unusual comet that is unlike anything seen before by scientists is expected to become visible from Earth in the coming weeks. Nasa and the European Space Agency's Solar and Heliospheric Observatory, also called SOHO, spotted the comet as it skimmed past the sun. The is not thought to belong to any known family of comets and scientists have been left baffled as to how it survived its close encounter with the sun. Scroll down for videos Comet SOHO2875 can be seen developing a tail in the image above as it moves away from the sun while a coronal mass ejection - an eruption of solar material - is thrown out into space by from the sun's surface


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SOHO was initally designed to study the internal structure of the sun and the huge explosions that send the solar wind racing across the solar system.


(CNN) -- The sinkhole first opened up in August of 2011, a relatively small thing, 2 feet wide and 5 feet deep. But in the 15 months since then, Florida couple John and Tina Furlow have watched helplessly as the sinkhole expands, threatening to swallow their bedroom. "Now it's approximately 8, 9 feet long," John Furlow told CNN affiliate WFLA last month at their home in Hernando County on Florida's west coast. "Every day, in our bedroom, we lay down and look up and there's more and more cracks. We're just, 'hey look, there's another one,'" said his wife. The growing cavern underneath their bedroom is reminiscent of another sinkhole in nearby Hillsborough County that claimed the life of Jeff Bush.


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Florida lies on bedrock made of limestone or other carbonate rock that can be eaten away by acidic groundwater, forming voids that collapse when the rock can no longer support the weight of what's above it.