It's long been accepted that the smoother the surface, the lower the aerodynamic drag. That turns out not always to be the case.

There are black holes that are too big to be born from the death of a star but aren’t quite supermassive either. There’s finally evidence for where those came from.

SpaceX has more to prove before flying Starship all the way to low-Earth orbit.

Keep your phone, laptop, handheld gaming console, and other electronics running with these travel-friendly power banks.

Wishing for your very own Dyson vacuum? Don’t miss these vacuum deals happening over the holiday weekend.

"Two astronauts whose careers embody excellence, leadership, and service."

Its do-it-all thermoplastic lining can both carry gear through wet muck and transport wet, mucky groceries home from the store.

A formal petition to the US government calls for sanctions on Chinese seafood imports.

To keep communications secure in a post-quantum world, cryptographers are digging down into the concept of cause and effect.

We’ve tested almost a dozen options that handle everything from scheduling and weather changes to water conservation, so you don’t have to.

Plus: Google publishes a live exploit for an unpatched flaw, the feds arrest two men accused of creating thousands of nonconsensual deepfake nudes, and more.

Once dismissed as empty expanses between galaxies, cosmic voids are becoming one of the most promising tools for probing the universe’s biggest mysteries.

Memorial Day isn’t until Monday, but sales on our favorite gear are going on all weekend.

A fascinating, unclassifiable orb found in the Gulf of Alaska is not an alien object, as some speculated, but the remains of a poorly documented animal.

The measure is part of a European Union–led strategy to eliminate all drunk-driving-related deaths and injuries by 2050.

It’s one of the best times of the year to buy a mattress, and deals on our favorite models are in full swing.

"This capability is not common for satellites conducting typical missions."

Ebola outbreak risk level increased as deaths reach 177 with nearly 750 cases.

Google tells Ars it fixed the first-gen Chromecast bug.

FCC seeks opinions on whether ABC show's decisions are "based on newsworthiness."