It Seems Like Spy Balloons Have Been Up There Along—You Just Didn’t Know It

It’s a bird! It’s a UFO! It’s ... a Chinese spy balloon? [View in Browser]( [Popular Mechanics]( [SHOP]( [EXCLUSIVE]( [SUBSCRIBE]( [It Seems Like Spy Balloons Have Been Up There Along—You Just Didn’t Know It]( [It Seems Like Spy Balloons Have Been Up There Along—You Just Didn’t Know It]( It’s a bird! It’s a UFO! It’s ... a Chinese spy balloon? [Read More]( [Dark Energy Is the Invisible Fabric of Our Universe, And We Know Virtually Zilch About It]( [Dark Energy Is the Invisible Fabric of Our Universe, And We Know Virtually Zilch About It]( To put it one way, it’s the observation that our cosmos is in the process of ripping itself apart. [Read More]( [Alternate text] [Alternate text] [Reaching Singularity Is Not an ‘If’ But a ‘When.’ We Need To Get It Right the First Time]( [Reaching Singularity Is Not an ‘If’ But a ‘When.’ We Need To Get It Right the First Time]( AI may not have any motives against humans, “but a machine that thinks that humans are the root cause of certain problems may think of it that way.” [Read More]( [The Toxic Chemicals Released in the Ohio Train Derailment Are Horrifying]( The Toxic Chemicals Released in the Ohio Train Derailment Are Horrifying]( Now that they’ve contaminated the crash site, what comes next? [Read More]( [Alternate text] [Alternate text] [How One of the Most Important Algorithms in Math Made Color TV Possible]( [How One of the Most Important Algorithms in Math Made Color TV Possible]( Color TV requires data for red, green, and blue light. This math algorithm simplifies data transmission so that you get color TV without tripling the demands on the channels. [Read More]( [How Fast Can You Complete This Puzzle?]( [How Fast Can You Complete This Puzzle?]( Assemble the mosaiced pieces to reveal one of our favorite photos. [Read More]( [Alternate text] [7-Minute Workouts That Burn Fat]( Follow Us [Unsubscribe]( | [Privacy Notice/Notice at Collection]( PopularMechanics.com ©2023 Hearst Magazine Media, Inc. All Rights Reserved. Hearst Magazines, 300 West 57th Street, New York, NY 10019