It's been several weeks since the SpaceX Mars rocket prototype has been waiting to take off in what will be its first orbital test flight at the company's Starbase facility, near the South Texas town ...

One of the most difficult tuning problems to overcome is the seemingly ever-present engine vacuum leak. Vacuum is an important component of the internal-combustion process because it controls basic ...

The world is getting ready for next year's launch of the first crewed Artemis mission to the Moon. It's a limited-scope one, but if all goes well, it will open the doors later in 2025 to Artemis III, ...

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SpaceX keeps notching Starship milestones. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. An important piece of SpaceX's new Starship megarocket ...

Jackson Ryan was CNET's science editor, and a multiple award-winning one at that. Earlier, he'd been a scientist, but he realized he wasn't very happy sitting at a lab bench all day. Science writing, ...

The last time we had this 470-inch Mopar big block on the dyno, it made 751 hp with Trick Flow heads and a dry sump oiling system. The dry sump setup that we used for those tests worked great, but it ...

Cummins’ 5.9L diesel engines have many wonderful traits, from the simplicity of their design to the durability and reliability of their internal components. However, the powerplants also have parts ...

Spacex fired up the first Raptor engine designed for the vacuum of space ahead of its future use on its Starship rockets. The Raptor Vacuum was recently shipped from the company’s California ...