UL100E, the only unleaded 100-octane avgas currently in the FAA’s fleet approval process, advances as pressure grows to ...

Which US rocket companies achieved the most during 2025? Once again, Ars Technica is here to provide some answers in the form ...

Freeze plugs prevent engine coolant from leaking out. One of the first signs that they'll need to be replaced is often a ...

Russia’s state-owned technology corporation Rostec has begun flight testing a new powerplant for the Sukhoi Su-57 fighter, which the conglomerate describes as a “fifth-generation” engine. The new ...

Black patients and patients from socioeconomically disadvantaged neighborhoods are dramatically under-represented in genetics clinics—often at rates half or less than those of white patients or ...

BRUSSELS—The European Union proposed watering down rules that would have effectively banned the sale of new combustion-engine cars in the bloc from 2035, after heavy pressure from the automotive ...

Beehive Industries announced on 8 December that it had completed high-altitude testing for its 200 lbf Frenzy engine. “The high-altitude test campaign, conducted at a government test facility in Ohio, ...

The groups say the agency did not adequately consider the risks of authorizing the hunt for new oil reserves. Conservation and Indigenous groups are suing the Interior Department to block new oil ...

Engine developer Everllence has adapted a four-stroke methanol auxiliary engine to run off ethanol. The tests took place at the company’s facilities in Frederikshavn, Denmark. It comes as shipowners ...

GE may operate a GE9X on its Boeing 747-400 flying testbed for a trial period in Dubai in early 2026. Credit: GE Aerospace With ambient temperatures soaring to 45C (113F) and a persistent haze of dust ...

We may receive a commission on purchases made from links. For much of the U.S., the concept of an engine block heater is a foreign one. Even areas like the mile-high city (Denver), which faces its ...