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The US National Transportation Safety Board has completed its investigation into a fatal crash involving a semi-truck and a Tesla Model S utilizing automated driving systems. The reasons for the crash are complex, but the report highlights issues with self-driving vehicles that should be of concern.

Audi has whipped the covers off a new RS 4 Avant. Gone are the old V8 and dual-clutch gearbox, and in their place is a downsized turbo V6 and torque converter. Don't think the Audi has gone soft, though. The all-wheel drive RS 4 should still give BMW M3 and AMG C63 owners nightmares.

Scientists were already aware that pigments from tattoo ink can travel to the lymph nodes. Cutting edge X-ray technologies have now provided a look at what much smaller, and more toxic particles within the ink get up to, suggesting that these too can make the migration.

Tattoos are fast becoming more than just a means of self-expression: soon they could be fitted with practical applications. Now, a team from Harvard and MIT has developed a smart ink that could make for tattoos that monitor biometrics like glucose levels, and change color in response.

The Alfa Romeo renaissance started with the Giulia, but given how popular mid-size SUVs are at the moment the new Stelvio is arguably more commercially important for the brand. The Stelvio has proven its performance chops with a new Nurburgring Nordschleife SUV lap record.

​Drone racing has risen quickly from dodgy meet-ups in abandoned warehouses to claiming some of the limelight on ESPN. Red Bull is now the latest big name to throw its weight behind the sport, hosting its first drone racing tournament over the weekend at the Red Bull Ring in Spielberg, Austria.

​Origami has plenty to offer the world of robotics, the latest example of which is a tower-shaped soft robot that can grasp objects and could safely interact with humans, possibly even as a tool for invasive surgeries.

Learning to ride a bicycle can be an intimidating process, which is why a lot of children start out on balance bikes. Well, now imagine how a kid might feel about riding a motorbike for the first time. It was with this in mind that STACYC created the Stability Cycle – it's an electric balance bike.

Earlier this month, NASA probes in orbit and on the Martian surface detected an incredibly bright global aurora as a powerful solar storm struck Mars. The aurora was accompanied by a powerful dose of radiation that would have posed a significant danger to humans exploring the Red Planet.

​​Around 4,500 miles (8,300 km) separate the Pacific coasts of Japan and Silicon Valley, a distance far beyond the reach of current non-military drones. But a new event called the Pacific Drone Challenge has thrown down the gauntlet to those in the business of driving the technology forward.

Hate searching for the TV remote? Well, with Matchpoint technology, any object can be used as a remote – you can even just use hand movements on their own. Also, unlike with some other gesture control systems, users don't have to memorize different movements for different commands.

Various multi-tools out there have fire-starting capabilities, but not the classic Swiss Army knife. The new Firefly from Tortoise Gear swaps in for the Swiss Army toothpick and works with various traditional implements to spark a fire.