Pop Science Associate Editor Mary Beth Griggs explains the mysterious plume that accompanied SpaceX's Falcon 9 rocket launch last week. For full interview [click here](https://cheddar.com/videos/what-made-spacexs-rocket-launch-look-like-an-alien-invasion).

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Hurricane Nigel Forms, Lee to Dissipate by Tuesday
Hurricane Nigel has formed in the Atlantic and is expected to intensify in the next 24 hours. Meanwhile, Lee brought rough surf along the U.S.-Canada border but the storm is expected to dissipate by Tuesday.
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