CAPE CANAVERAL, FLORIDA – Spacewalking astronauts gave the International Space Station's big robot arm a new hand Thursday. Commander Randy Bresnik and Mark Vande Hei accomplished the job on the first of three NASA spacewalks planned over the next two weeks. "One down, two to go," Bresnik said as the seven-hour spacewalk came to a close. The pair will go back out Tuesday to lubricate the new arm attachment. It needed to be replaced before the arrival of an Orbital ATK supply ship in November.

In this Oct. 4, 2017, photo, Pakistani Foreign Minister Khawaja Asif stands during a meeting with Secretary of State Rex Tillerson at the State Department in Washington. Pakistan said Oct. 5, its influence over the Taliban has diminished since a U.S. drone strike killed the militant group's leader last year, derailing talks aimed at bringing peace to Afghanistan. Asif said Pakistan wants peace in the neighboring country, and still has some influence over the militant group, "but it's not as much as it used to be." (AP Photo/Cliff Owen) The Associated Press

The Omega Team was the soul of the company. Whereas the rest of the enterprise brought in the money to keep things going, by various commercial applications of narrow AI, the Omega Team pushed ahead in their quest for what had always been the CEO's dream: building general artificial intelligence. Most other employees viewed "the Omegas," as they affectionately called them, as a bunch of pie-in-the-sky dreamers, perpetually decades away from their goal. They happily indulged them, however, because they liked the prestige that the cutting-edge work of the Omegas gave their company, and they also appreciated the improved algorithms that the Omegas occasionally gave them. What they didn't realize was that the Omegas had carefully crafted their image to hide a secret: They were extremely close to pulling off the most audacious plan in human history. Their charismatic CEO had handpicked them not only for being brilliant researchers, but also for ambition, idealism, and a strong commitment to helping humanity. He reminded them that their plan was extremely dangerous, and that if powerful governments found out, they would do virtually anything--including kidnapping--to shut them down or, preferably, to steal their code. But they were all in, 100 percent, for much the same reason that many of the world's top physicists joined the Manhattan Project to develop nuclear weapons: They were convinced that if they didn't do it first, someone less idealistic would. The AI they had built, nicknamed Prometheus, kept getting more capable. Although its cognitive abilities still lagged far behind those of humans in many areas, for example, social skills, the Omegas had pushed hard to make it extraordinary at one particular task: programming AI systems. They'd deliberately chosen this strategy because they had bought the intelligence explosion argument made by the British mathematician Irving Good back in 1965: "Let an ultraintelligent machine be defined as a machine that can far surpass all the intellectual activities of any man, however clever. Since the design of machines is one of these intellectual activities, an ultraintelligent machine could design even better machines; there would then unquestionably be an'intelligence explosion,' and the intelligence of man would be left far behind. Thus the first ultraintelligent machine is the last invention that man need ever make, provided that the machine is docile enough to tell us how to keep it under control."

Welcome back to Data Science 101! Do you have text data? Do you want to figure out whether the opinions expressed in it are positive or negative? Then you've come to the right place! Today, we're going to get you up to speed on sentiment analysis. If you're the hands-on type, you might want to head directly to the notebook for this tutorial.

Meet Zia Chishti, the person who likes to show his investors that Pakistan is safe and they need to understand the country to understand his company. Recently, Chishti embarked off a helicopter- skiing his way downhill in the northern snow capped peaks of Pakistan, with the aim to convince investors, clients and CEOs that the nation that was once recalled by the economist as'the world's most dangerous place' is officially safe for business and everyday living. Chishti, gathered a group from several countries including Alessandro Benetton, a heir to a billionaire family and owner to the iconic Italian clothing company, and Huawei Technologies Co. rotating CEO Guo Ping earlier this year in Pakistan. An Afiniti ski group enjoys the Karakoram mountain range. Last month, his artificial intelligence company -Afiniti- signed a deal with Huawei.

A full-scale figure of a "T-800" terminator robot used in the movie Terminator 2, is displayed at a preview of the Terminator Exhibition in Tokyo in 2009. A full-scale figure of a "T-800" terminator robot used in the movie Terminator 2, is displayed at a preview of the Terminator Exhibition in Tokyo in 2009. Artificial intelligence is the subject of great hopes, dire warnings, and now -- a congressional caucus. Alarms about AI have been raised in apocalyptic movies and by some of the most pioneering minds in science and technology. Elon Musk, the Tesla and SpaceX CEO, said in July that AI is a "fundamental existential risk for human civilization."

The Pew Research Center wanted to gauge Americans' sentiments on robots and computers getting good enough to assume human tasks. Respondents in a national survey of 4,135 adults this May reported feeling far more worried than enthused about robots and computers performing jobs like driving cars, screening employees or taking care of the elderly. Doubters outnumbered optimists 72% to 33%. On specific tasks, the survey found the most opposition (67%) when it comes to jobs demanding judgement, such as evaluating job candidates. The sentiment was more evenly split on driverless cars and elder care, despite evidence showing computers are less error-prone than humans when it comes to driving cars (and planes, trains and other vehicles).

In this frame from NASA TV, Astronauts Mark Vande Hei, left, and Randy Bresnik work on the International Space Station on Thursday, Oct. 5, 2017. The astronauts went out on a spacewalk to give the International Space Station's big robot arm a new hand.

Elon Musk the CEO of Tesla and SpaceX, has an interesting way of looking at both the world and the universe. Just this Friday Musk shared his plan to use a SpaceX rocket to transport people to points around the world in just 30 minutes. Maybe what he says is crazy. But no matter what stance you take on Musk's ideas, it's worth hearing them out. Below are 14 of Musk's craziest views on everything from Mars to artificial intelligence.

With the final war of the Roman Republic brewing, the period has proven hugely influential in fine art, theatre and film, from Shakespeare to Hollywood. But later this year it may be subject to its most rigorous investigation yet: a video game. Out at the end of October, Assassin's Creed: Origins, follows the story of Bayek, a military officer looking to protect his people as Julius Caesar's Roman army threatens invasion. The game is set to feature a vast open-world recreation of ancient Egypt, featuring several cities as well as stretches of wilderness and ocean. As with all titles in the series, historical events and figures are set to figure, but this time, the gargantuan project isn't just about the game – Ubisoft has more ambitious plans for its rich simulation.