A new gas sensor can detect ethanol in the air at just 5 parts per billion while using less than 30 milliwatts of power.

A group of scientists will later this year deploy deep-sea landers to test whether metallic rocks on the ocean floor do in fact produce oxygen. The claim, made in 2024 by British marine ecologist ...

I live in New Jersey, one of the states that mandates inspection for all vehicles newer than 1995. My daily driver, a Jeep Cherokee, happens to be a 1996 model year with an OBD-II sensor, meaning I ...

Ever wondered why a battery that reads full voltage still struggles to power your device? The answer often lies in its internal resistance. This hidden factor affects how efficiently a battery ...

Flu season is fast approaching in the northern hemisphere. And a taste-based influenza test could someday have you swapping nasal swabs for chewing gum. A new molecular sensor has been designed to ...

Elon Musk’s SpaceX Starship rocket never made it off the ground for its scheduled tenth test flight Sunday night before issues with the ground systems interfered — spoiling the company’s hopes for its ...

WHITE SANDS MISSILE RANGE, N.M., Aug. 18, 2025 /PRNewswire/ -- Raytheon, an RTX (NYSE: RTX) business, successfully completed another 360-degree flight test for the Lower Tier Air and Missile Defense ...

Apple released a small build update to iOS 26 developer beta 6, which does not re-enable the blood oxygen sensor on Apple Watch in spite of the earlier iOS 18.6.1 update that did. The new iOS 26 ...

If you’ve had your eye on a new Apple Watch Series 10, now’s the day to finally get one. Not only is it $100 off, starting at just $299 for the 42mm model, but the blood-oxygen sensor is finally ...

In a surprise Thursday announcement, Apple says that it is bringing the blood oxygen sensor feature back to the Apple Watch Series 9 and newer. The returning feature will be part of an iOS 18.6.1 and ...

Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...

The BOLT test measures how long you can safely maintain breath after exhaling, before feeling compelled to breathe. The standardised test offers an authentic assessment of your breathing efficiency, ...