China has completed full-engine testing of a 220-tonne liquid oxygen-methane engine for its reusable carrier rockets, marking a major breakthrough in high-thrust, high-performance propulsion.

AV tapped to develop Generative Environment for the Next Era of Spectral Imaging Stimulators (GENESIS) test environment AV was awarded a $97.4 million U.S. Army contract to develop GENESIS, a ...

While much of the recent spotlight has been fixed on BYD’s meteoric ascent, another Chinese heavyweight has been quietly building scale and influence of its own. Geely has spent the past few years ...

The 2026 Toyota RAV4 GR Sport is like nothing on the market today, although we’re still not sure if that’s a good thing. Here’s a flashy plug-in hybrid that stops traffic, demolishes the competition ...

John Ghanem died and Amelia Khan suffered permanent brain damage due to a gas mix-up when they were being resuscitated shortly after their births in 2016. Contractor Christopher Turner has pleaded ...

One of the most important measurements we make while tuning an engine is finding out what the actual balance of air and fuel was inside the engine. It doesn’t matter if we have a carburetor, port ...

If you build engines, tune cars, or even just like mashing your foot on the throttle with conviction, you’ve probably heard the term “wideband O2 sensor” being thrown around at the track, dyno ...

We may receive a commission on purchases made from links. While it may seem intimidating at first, there are plenty of easy DIY auto maintenance projects that even the most novice DIY-er can handle.

Toyota is in a bit of a pickle. Its hybrid fleet helps with emissions, but it's the plug-in hybrids that really make a difference. Fortunately, Toyota makes excellent ones. In this Toyota RAV4 PHEV ...

The Gen III TacIRST distributed infrared threat‑warning system will equip the F-22 Raptor, with an evaluation planned in 2026. Lockheed Martin has announced the first flight of the latest iteration of ...

Odds are you probably know someone with a newer Toyota RAV4—a neighbor, co-worker, or friend. Makes sense; the fifth-generation model has been trading off with the Tesla Model Y as the bestselling car ...