Don't worry, as part of NASA's Grand Challenges humanity is actually actually on the case. But FYI a newly discovered asteroid (named 2013 TV135) has a slight chance of smashing into Earth on August 26, 2032.
NASA's Don Yeomans notes that "this is a relatively new discovery. With more observations, I fully expect we will be able to significantly reduce, or rule out entirely, any impact probability for the foreseeable future
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