The YF-12 Could Fly at Mach 3 and Blast Russian Bombers from the Sky. Why Did It Never See Action?

In a September 1965 test, a YF-12 successfully launched a quarter-kiloton atomic missile, from an altitude of 75,000 feet at Mach 3.26. [View in Browser]( [Popular Mechanics]( [SHOP]( [EXCLUSIVE]( [SUBSCRIBE]( [The YF-12 Could Fly at Mach 3 and Blast Russian Bombers from the Sky. Why Did It Never See Action?]( [The YF-12 Could Fly at Mach 3 and Blast Russian Bombers from the Sky. Why Did It Never See Action?]( In a September 1965 test, a YF-12 successfully launched a quarter-kiloton atomic missile, from an altitude of 75,000 feet at Mach 3.26. [Read More]( [Alternate text] [Alternate text] [How to Make a Fog Machine for Halloween]( [How to Make a Fog Machine for Halloween]( Scare yourself and the trick-or-treaters this Halloween with a home-built fog machine a rewarding and downright fun project. [Read More]( [This One Molecule Could Be the Source of All Life on Earth]( [This One Molecule Could Be the Source of All Life on Earth]( Now it’s just floating around in an interstellar cloud. [Read More]( [Alternate text] [Alternate text] [Experts Just Found A World War II Submarine That Was Missing for 80 Years]( Experts Just Found A World War II Submarine That Was Missing for 80 Years]( They were looking in the wrong place all along. [Read More]( [Scientists Might Have Cracked the Code on How to Find Dark Matter]( [Scientists Might Have Cracked the Code on How to Find Dark Matter]( If you’re exploring the frontier of known particle physics, examining neutron stars, which produce some of the most intense magnetic and gravitational environments in the universe, is a good place to start. [Read More]( [Alternate text] [Alternate text] [Beats Studio Pro Headphones With ANC At 51% Off at Amazon]( [Beats Studio Pro Headphones With ANC At 51% Off at Amazon]( The headphones offer premium features like active noise cancellation, spatial audio, and transparency mode. [Read More]( [Alternate text] [Good Housekeeping 1,001 Amazing Science Facts]( [LiveIntent Logo]( [AdChoices Logo]( [Need Assistance? Contact Us.](mailto:pmpmembership@popularmechanics.com) Follow Us [Visit Popular Mechanics on Facebook]( [Visit Popular Mechanics on X formerly Twitter]( [Visit Popular Mechanics on Instagram]( [Visit Popular Mechanics on YouTube]( [Unsubscribe]( | [Privacy Notice]( | [CA Notice at Collection]( Popular Mechanics is a publication of Hearst Magazines. ©2024 Hearst Magazine Media, Inc. All Rights Reserved. This email was sent by Hearst Magazines, 300 West 57th Street, New York, NY 10019-3779