SEE ALSO: Elon Musk gives us first look at the Boring Company's car elevator Answering a Twitter user's question about his "amazing life," Musk said it consists of "great highs, terrible lows and unrelenting stress." The reality is great highs, terrible lows and unrelenting stress. Musk even gave a recipe for dealing with all that stress, although by his own admission it's probably not the best answer: "take the pain and make sure you really care about what you're doing." During the launch event, Musk spoke about potential manufacturing problems, saying that the next six months will likely be "hell."

Eventually, Mercedes plans to have the service recognize any Mercedes-Benz vehicle with the proper systems after it drives into a special valet zone in the parking garage. The parking system would communicate with eh car, syncing with the sensors built into the garage to complete the parking job. There are no headaches circling a cramped garage for spots, no handing of keys to expensive luxury cars over to strangers, no memorizing parking lot zones -- just a few taps on a smartphone, a quick ride, and patrons are free to explore the museum. The car communicates with the sensor system built into the parking garage itself, so driving systems of varying sophistication will theoretically be able to navigate the space with equal precision.

On Saturday, the UK government posted new rules governing the use of drones weighing over 250 grams (about half a pound), with input from the Department for Transport, the Civil Aviation Authority, and the Military Aviation Authority. The guidelines state that drone users will have to register their devices and undergo safety awareness testing to ensure that they're aware of UK security, privacy, and safety rules. "By registering drones, introducing safety awareness tests to educate users we can reduce the inadvertent breaching of airspace restrictions." "By registering drones, introducing safety awareness tests to educate users we can reduce the inadvertent breaching of airspace restrictions to protect the public."

If you've ever wondered about what it's like to be inside the International Space Station through the lens of, say, a drone, look no further. The Japan Aerospace Exploration Agency (JAXA) has released images and video from its JEM Internal Ball Camera, known as "Int-Ball," -- a camera drone that can record images and video while moving in space -- and the new footage gives us earth-dwellers a sneak peek of the happenings on the space laboratory. According to the JAXA, the Int-Ball was initially delivered to "Kibo," the Japanese Experiment Module on the International Space Station, on June 4, 2017, aboard SpaceX's uncrewed Dragon capsule. With the device and it's recording capabilities, JAXA is giving people a fascinating look at the inner-workings of the International Space Station.

Cars are going to drive themselves sooner or later -- so what will we do with all that extra commuting time so we're not stuck twiddling our thumbs? It put test subjects in a super futuristic autonomous car simulation, then assigned them a series of attention-demanding tasks while monitoring brain activity with EEG sensors. The distracting demo was, of course, distracting, making the work more difficult. A report published by Intel and Strategy Analytics last month projects that self-driving cars will create a massive $7 trillion "passenger economy" by 2050, with 250 million hours of commuting time per year dedicated to these new spaces.

To us as a neuroscientist and biomechanist ( Lena), and a rehabilitation scientist and dancer ( Madeleine), understanding the complexities of motor skill in a ballet move, or the physical language of coordination in partner dance, is an inspiring and daunting challenge. Adapted tango rehabilitation class improves gait and balance in people with Parkinson's disease. Lucas McKay, an assistant professor in Biomedical Engineering at Emory specializing in mechanisms of balance impairment in Parkinson's disease, showed that participants improved muscle activity for balance after adapted tango. That is, as they practiced their tango dancing skills, they developed motor modules that also helped them walk and balance in everyday situations.

SEE ALSO: Check out the first photos of Waymo's self-driving big rig The cars can deal with roaming deer, elk, and caribou, but can't process kangaroos because of the animals' "unique method of movement," or hopping. "Any company that would be working on the autonomous car concept would be having to do the same developmental work," Volvo Australia Managing Director Kevin McCann said. SEE ALSO: Car rental companies are nervous about driverless cars, so they're doing something about it Volvo expects to solve its kangaroo problem by the time its self-driving cars are scheduled to hit the market in 2020. That's crucial for the Australian market, where kangaroos -- not deer -- cause the most accidents involving animals.

The San Francisco-based ride-hailing giant has fired more than 20 people following a sexual harassment investigation, Bloomberg reported, citing an anonymous source familiar with the matter. The firm had investigated 215 claims of sexual harassment within the company. Rigetti, who now works at Stripe, called out Uber board member Arianna Huffington and Uber's Chief of Human Resources Liane Hornsey's repeated claims against such "systemic" problems of sexual harassment within the company. Arianna and Liane to press: there is no systemic sexual harassment, just Susan.

Lyft is adding yet another new name to its growing list of official self-driving partners -- and this one already has an established track record of putting autonomous cars on real life streets. The ride hailing company just announced a new agreement with nuTonomy, the MIT-founded startup that was the first to test a self-driving program carrying passengers alongside real traffic on city streets. The new partnership between Lyft and nuTonomy will aim to put self-driving cars on the streets of nuTonomy's home city, Boston, where the startup has been conducting road tests since late last year. Lyft now has three deals tied to autonomous car development in place; the ride hailing company also has pacts with Google's Waymo and GM, which also invested $500 million in the company and holds a seat on Lyft's board of directors.

Denver's LaMar's Donuts teamed up with Drone Dispatch -- from Austin, Texas -- to make this hungry tech-lover's dream become a reality and give the world a glimpse into the future of drone delivery. The drones delivered four boxes of LaMar's doughnuts to honor a tradition dating back to World War I when Salvation Army volunteers made doughnuts for soldiers. "We're doing it completely legal, we have very, very short deliveries from the drone where we have a safe takeoff location and the landing area is a Drone Dispatch team member who's receiving the box of doughnuts," CEO of Drone Dispatch, Chris Bonnet, told the AP. Amazon has been testing the delivery-by-drone method since 2016 when it made its first drone delivery of an Amazon Fire TV and a bag of popcorn in the United Kingdom.