If you have a knee replacement, imagine pointing your phone at your knee and pulling up an app that tells you how much stress ...

The astronauts are in the capsule and in place for the Artemis II mission. NASA is looking into a battery issue, but the launch countdown is still on. NASA’s planned ...

Innovative conductive hydrogel mimics living tissue, enabling oxygen sensing and electrical control of growth factors, paving ...

You might love the motivating tempo for workouts or the cadent call for calm that a smartwatch heart rate monitor provides. But when it’s time for an upgrade, what ...

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 ...

Alright, so that engine knocking and the car running like crap? Yeah, it was back. Even after cleaning everything (EGR, O2 Sensor, Throttle body, Intake Manifold, Exhaust manifold) last time, the ...

For an enthusiast, a stock car is never enough; you get a new car, but you want more. More power, better handling, better exhaust note, better looks. Some mods look good, but they end up making your ...

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, ...

Early last year, Apple made the bold, court-mandated decision to remove the blood-oxygen feature from the Apple Watch Series 9 and Ultra 2 in the U.S. over a patent dispute with medical technology ...

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 ...

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, ...