Aliens From the Fourth-Dimension May Be Invading Our World—And We Don’t Even Know It

Theoretically, it’s impossible for us to perceive a 4D creature. That is, unless it broke into our three-dimensional reality. [View in Browser]( [Popular Mechanics]( [SHOP]( [EXCLUSIVE]( [SUBSCRIBE]( [Aliens From the Fourth-Dimension May Be Invading Our World—And We Don’t Even Know It]( [Aliens From the Fourth-Dimension May Be Invading Our World—And We Don’t Even Know It]( Theoretically, it’s impossible for us to perceive a 4D creature. That is, unless it broke into our three-dimensional reality. [Read More]( [Alternate text] [Alternate text] [Get the Ultimate Entertainment Experience With These Expert-Recommended Smart TVs]( [Get the Ultimate Entertainment Experience With These Expert-Recommended Smart TVs]( Our top picks offer an impressive balance of performance, features, and cutting-edge technology. [Read More]( [There Are 4 Pillars of Stability for Life on Earth. Scientists Say They're Close to Collapse.]( [There Are 4 Pillars of Stability for Life on Earth. Scientists Say They're Close to Collapse.]( What do you do when your planet’s essential equilibrium is teetering on the edge of disaster? Asking for a friend. [Read More]( [Alternate text] [Alternate text] [Archaeologists Found a Mysterious Ancient Stone That Could Lead to a Lost Maya City]( Archaeologists Found a Mysterious Ancient Stone That Could Lead to a Lost Maya City]( Hieroglyphic symbols on the slab hold secrets that may rewrite history. [Read More]( [Retain Food Freshness With One of These Editor-Recommended Vacuum Sealers]( [Retain Food Freshness With One of These Editor-Recommended Vacuum Sealers]( An easy way to preserve flavor in your favorite meats and produce. [Read More]( [Alternate text] [Alternate text] [A Forensic Archaeologist Solved the 100-Year-Old Mystery of a Missing WWI Soldier]( [A Forensic Archaeologist Solved the 100-Year-Old Mystery of a Missing WWI Soldier]( The family of Private 1st Class Charles McAllister finally has closure. [Read More]( [Alternate text] [Puzzmo]( [LiveIntent Logo]( [AdChoices Logo]( [Need Assistance? Contact Us.](mailto:pmpmembership@popularmechanics.com) Follow Us [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