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If you have trouble reading this message, view it in a browser.     Ready to join? You love the Popular Mechanics newsletter, but we want to make sure you aren't missing out on more ways to dive deeper into the topics you love!   Join Pop Mech Pro and you'll get unlimited access to every online story, plus an annual print subscription, deals from brands we love, exclusive plans for your next DIY projects, and a ton more awesome stuff.   Become a member to check out the exclusive Pop Mech Pro benefits and members-only stories below! Just $20     Your Pop Mech Pro Membership Benefits Include     Unlimited access to site content     Annual print subscription     Members-only weekly newsletter     Deals that improve your life Just $20         Gas Giants May Have Bullied Planet 9 to the Fringes of Our Solar System Jupiter, Saturn, Uranus, or Neptune may have sent the Earth-sized planet barreling toward deep space. Read More     France Is Furious with Australia Over a Broken Submarine Deal. Here's Why. The entire episode is a lesson in not only military equipment procurement, but also employer-contractor relations. Read More     Debunking the 9/11 Conspiracy Theories: Special Report - The World Trade Center Popular Mechanics examines the evidence and consults the experts to refute the most persistent conspiracy theories of September 11. Read More Ready to go Pro? Go down a rabbit hole on your favorite topic, from space to military to DIY and more. Join Now Follow Us Unsubscribe Privacy Notice PopularMechanics.com ©2021 Hearst Communications Inc. All Rights Reserved. Hearst Email Privacy, 300 W 57th St., Fl. 19 (sta 1-1), New York, NY 10019