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Super-solid helium state confirmed in beautiful experiment
In recent months, I’ve mentioned super-solids a couple of times, which is a bit unusual for something we haven't been sure actually exists. However, a recent paper seems to offer some quite strong confirmation that super-solids are real. That means it is time to delve into the weird and wonderful world of low-temperature helium.

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At least one major carrier lied about its 4G coverage, FCC review finds
Four months after receiving a complaint claiming that Verizon "grossly overstated" its 4G LTE coverage in government filings, the Federal Communications Commission says that at least one carrier is apparently guilty of significant rules violations. The FCC did not name any specific carrier in its announcement and did not respond to our question about whether Verizon is among the carriers…

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Cryptography failure leads to easy hacking for PlayStation Classic
In the days since the PlayStation Classic's official release, hackers have already made great progress in loading other PlayStation games (and even non-PlayStation software) onto the plug-and-play device. What's more, it seems some sloppy cryptography work on Sony's part is key to unlocking the device for other uses. Console hackers yifanlu and madmonkey1907 were among those who were able to…

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Researchers find super-solid by looking at a normal solid
In recent months, I’ve mentioned super-solids a couple of times, which is a bit unusual for something we haven't been sure actually exists. However, a recent paper seems to offer some quite strong confirmation that super-solids are real. That means it is time to delve into the weird and wonderful world of low-temperature helium.

Tech
Greenland’s melting snow makes new a hockey stick (graph)
The Greenland Ice Sheet’s unhealthy and rapid weight loss—and contribution to sea level rise—occurs by a handful of mechanisms. In short, ice at the edge of the glacier can melt or break off into icebergs, and surface snow farther inland can melt. That snow melt is a bit like rainfall, in that it can either soak into the snow or…

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Eight great board games we played at PAX Unplugged
Welcome to Ars Cardboard, our weekend look at tabletop games! Check out our complete board gaming coverage at cardboard.arstechnica.com. PAX Unplugged, the tabletop board gaming conference that emerged from the PAX video game conference empire, took place in Philadelphia last week. It was bigger and better than last year's inaugural event, with more space allocated to the exhibit floor and…

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Why driving is hard—even for AIs
Welcome to Ars UNITE, our week-long virtual conference on the ways that innovation brings unusual pairings together. Each day this week from Wednesday through Friday, we're bringing you a pair of stories about facing the future. Today's focus is on AI in the city—get ready for a lot of smart buildings and self-driving stuff!

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Bikini app maker draws another disgruntled developer to its Facebook fight
Further ReadingFacebook pondered, for a time, selling access to user dataIn recent weeks, a dust-up between the maker of a forgotten Facebook bikini app and the social media giant has been boosted by a high-profile fight involving the British Parliament. On Friday, both sides in the Six4Three v.

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Obsidian Entertainment finally announces its Fallout: New Vegas successor
Obsidian Entertainment, developers of games like , , and ran a trailer for a new game at The Game Awards last night. Titled , it's a first-person shooter and RPG that the trailer seems to position as a spiritual successor to , one of Obsidian's most beloved previous works. Set to a song by Iggy Pop, the trailer includes witty,…