If you hadn't heard, Elon Musk is worried about the machines. Though that may seem a quixotic stance for the head of multiple tech companies to take, it seems that his proximity to the bleeding edge of technological development has given him the heebie-jeebies when it comes to artificial intelligence. He's shared his fears of AI running amok before, likening it to "summoning the demon," and Musk doubled down on his stance at a meeting of the National Governors Association this weekend, telling state leaders that AI poses an existential threat to humanity. "Until people see robots going down the street killing people, they don't know how to react because it seems so ethereal. AI is a rare case where I think we need to be proactive in regulation instead of reactive. Because I think by the time we are reactive in AI regulation, it's too late," according to the MIT Tech Review.

A Japanese robot has begun probing the radioactive water at Fukushima's nuclear reactor. The marine robot, nicknamed the'little sunfish', is on a mission to study structural damage and find fuel inside the three reactors of the devastated plant. Experts said remote-controlled bots are key to finding fuel at the dangerous site, which has likely melted and been submerged by highly radioactive water. A Japanese robot has begun probing the radioactive water at Fukushima's nuclear reactor. An underwater robot has captured images and other data inside Japan's crippled Fukushima nuclear plant on its first day of work.

What if a machine helped you make a dinner reservation? In some ways, most of us already do that when we book a dinner reservation with OpenTable. The app makes it seem like it isn't machine learning making it all possible, although we likely get a hint of cognitive power behind how it all works. Really, we're just hoping to meet for business at a seafood restaurant in Mill Valley north of the Golden Gate Bridge. We might not care if there is an AI involved; what we care about is whether there is a table available.

Prepare to be "teleported" from Southern California to the Bay Area. That's the idea behind a new bus equipped with sleeping cabins that leaves Santa Monica at night and delivers your well-rested self to San Francisco the next morning. Snooze your way north in what Tom Currier, CEO and co-founder of the new service called Cabin, calls "a hotel that moves from one place to the other." He thinks travelers will enjoy making the journey using their sleep time as travel time. "I'm not spending six hours driving, I'm on a memory foam bed, and I'm more refreshed when I get into the city," Currier said.

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Considered the first electrical speech synthesizer, VODER (Voice Operation DEmonstratoR) was developed by Homer Dudley at Bell Labs and demonstrated at both the 1939 New York World's Fair and the 1939 Golden Gate International Exposition. Difficult to use and difficult to operate, VODER nonetheless paved the way for future machine-generated speech.

At biotech startup Zymergen, robotic fingers are poised to pick microbe colonies in an AI-controlled quest for strains that crank out more chemicals. EMERYVILLE, CALIFORNIA--If this is the biology laboratory of the future, it doesn't look so different from today's. Scientists in white lab coats walk by with boxes of frozen tubes. The chemicals on the shelves--bottles of pure alcohol, bins of sugar, protein, and salts--are standard issue for growing microbes and manipulating their genes. You don't even notice the robots until you hear them: They sound like crickets singing to each other amid the low roar of fans.

The SpaceX Dragon capsule that made history by becoming the first recycled spacecraft to fly two missions was recovered on Tuesday. The capsule took supplies to the International Space Station and splashed down as planned in the Pacific Ocean on Monday. SpaceX announced on Twitter that the Dragon hit the water off the California coast shortly after 5am Monday. After being released by the space station's robotic arm, the capsule completed a 5½-hour journey back to Earth, part of which was captured by NASA astronaut Jack Fischer. NASA astronaut Jack Fischer photographed the SpaceX Dragon capsule as it reentered Earth's atmosphere before splashing down in the Pacific Ocean west of Baja California at 8:12 a.m. EDT, July 3, 2017.

Scientists are using artificial intelligence (AI) to help predict which embryos will result in IVF success. In a new study, AI was found to be more accurate than embryologists at pinpointing which embryos had the potential to result in the birth of a healthy baby. Experts from Sao Paulo State University in Brazil have teamed up with Boston Place Clinic in London to develop the technology in collaboration with Dr Cristina Hickman, scientific adviser to the British Fertility Society. They believe the inexpensive technique has the potential to transform care for patients and help women achieve pregnancy sooner. During the process, AI was "trained" in what a good embryo looks like from a series of images.

A SpaceX Dragon capsule that brought supplies to the International Space Station has splashed down as planned in the Pacific Ocean. SpaceX announced on Twitter that the Dragon hit the water off the California coast shortly after 5 a.m. After being released by the space station's robotic arm, the capsule completed a 5½-hour journey back to Earth, part of which was captured by NASA astronaut Jack Fischer. NASA astronaut Jack Fischer photographed the SpaceX Dragon capsule as it reentered Earth's atmosphere before splashing down in the Pacific Ocean west of Baja California at 8:12 a.m. EDT, July 3, 2017. He photographed the SpaceX Dragon capsule as it reentered Earth's atmosphere before splashing down in the Pacific Ocean west of Baja California.