{"id":5485,"date":"2026-06-22T18:45:00","date_gmt":"2026-06-22T23:45:00","guid":{"rendered":"https:\/\/okdiario.com\/techy\/en\/?p=5485"},"modified":"2026-06-22T09:37:33","modified_gmt":"2026-06-22T14:37:33","slug":"a-former-nasa-engineer-says-his-propellant-free-engine-can-beat-earths-gravity-but-the-real-test-is-whether-physics-lets-it-leave-the-lab","status":"publish","type":"post","link":"https:\/\/okdiario.com\/techy\/en\/a-former-nasa-engineer-says-his-propellant-free-engine-can-beat-earths-gravity-but-the-real-test-is-whether-physics-lets-it-leave-the-lab\/5485\/","title":{"rendered":"A former NASA engineer says his propellant-free engine can beat Earth\u2019s gravity, but the real test is whether physics lets it leave the lab"},"content":{"rendered":"\n

What if a spacecraft could move without carrying fuel tanks, burning propellant, or throwing hot exhaust into the atmosphere? That is the eye-catching promise behind a new claim from Charles Buhler and Exodus Propulsion Technologies, a private company arguing that electric fields alone can create thrust strong enough to counter Earth\u2019s gravity.<\/p>\n\n\n\n

The claim is intriguing because it sits right where space technology, environmental concern, and hard physics collide. Rockets are getting more common, and U.S.-licensed launches and reentries rose from 9 in 2012 to 124 in 2023, according to the Government Accountability Office. <\/p>\n\n\n\n

Rocket launches also release gases and particles into the air, which is why regulators review their environmental effects<\/a> before licensing commercial space activity.<\/p>\n\n\n\n

A gravity-defying claim<\/h2>\n\n\n\n

Buhler is not a random internet inventor. NASA materials describe the Electrostatics and Surface Physics Laboratory<\/a> at Kennedy Space Center as a facility focused on electrostatic discharges, lunar and Martian dust, and technologies that use electrostatic forces to solve spaceflight problems.<\/p>\n\n\n\n

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Also Read: A former NASA engineer says his propellant-free engine can beat Earth\u2019s gravity, but the real test is whether physics lets it leave the lab<\/a><\/h4>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n

That background matters, but so does the fine print. The propulsion work belongs to Exodus Propulsion Technologies, not NASA. Buhler has described the idea as a \u201cNew Force,\u201d telling The Debrief that electric fields can create a sustained force on an object without expelling mass.<\/p>\n\n\n\n

In practical terms, that would be a very big deal. Nearly every spacecraft engine we rely on pushes something backward so the vehicle can move forward. If that rule can be bypassed, even in a small way, it would change how engineers think about satellites, deep-space probes, and perhaps one day cleaner access to orbit.<\/p>\n\n\n\n

Why physicists are skeptical<\/h2>\n\n\n\n

Here is the catch: a drive that moves without propellant appears to run straight into conservation of momentum, one of the load-bearing rules of modern physics. It is the same basic idea behind a balloon flying around a room when air rushes out of it.<\/p>\n\n\n\n

That is why scientists tend to ask a simple question before celebrating: where is the reaction? If nothing is being thrown backward, pushed against, or exchanged with a field in a verified way, the result may be an experimental illusion rather than a new engine.<\/p>\n\n\n\n

This field has been fooled before. The EmDrive, introduced by British engineer Roger Shawyer in 2001, also claimed to generate thrust without propellant and attracted attention after reported tests, including NASA Eagleworks work. <\/p>\n\n\n\n

Later high-accuracy testing by Martin Tajmar, Oliver Neunzig, and Marcel Weikert found no thrust within the tested operating range and limited any anomalous force to below classical radiation pressure.<\/p>\n\n\n\n

The EmDrive warning<\/h2>\n\n\n\n

The EmDrive story is useful because it shows how exciting measurements can shrink under better controls. Tiny forces are hard to measure. Heat, power cables, vibration, air currents, magnetic effects, and even the test rig itself can nudge a sensor in ways that look meaningful at first.<\/p>\n\n\n\n

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Also Read: Drax is buying solar and wind farms in a \u00a3560 million deal, and the bigger story is who controls renewable capacity after the boom<\/a><\/h4>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n

That does not mean every strange result is wrong, it just means the burden of proof is high. For the most part, a propellantless engine cannot win acceptance through a dramatic presentation, a patent, or a lab video. It needs outside teams to reproduce the force with their own equipment.<\/p>\n\n\n\n

That is the missing piece for Exodus right now. Popular Mechanics reported in May 2026 that there was no published independent replication using an outside lab\u2019s own apparatus, instrumentation, and uncertainty budget. That is the heart of the story.<\/p>\n\n\n\n

What Exodus says happened<\/h2>\n\n\n\n

According to Buhler\u2019s public explanation, the team spent years working through different propellantless concepts before focusing on electrostatics. The company says its devices eventually produced measurable thrust in vacuum chamber tests, with major improvements arriving in 2022 and 2023.<\/p>\n\n\n\n

Buhler told The Debrief that some test articles weighed about 1.1 to 1.4 oz. without attached equipment and were reported to produce enough thrust to counter one Earth gravity. That does not mean a spacecraft has flown, it means the company says the force, compared with the test article\u2019s own weight, reached the lift-itself threshold.<\/p>\n\n\n\n

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