Imagine it's 2018 and some scientists from NASA are at the White House to see President Clintrump. There's a piece of space coming toward us; it is rocky, and icy, and big, and the risk of it hitting the Earth is much larger than anyone is comfortable with. Even if there's time to act, there won't be much of it. Where did it come from? How come we didn't spot it until now? What's the best course of action to take?

As the election season rampages on, we categorize voters into broad demographics -- soccer moms, NASCAR dads, blacks, whites, ALICEs, yuppies -- in an attempt to understand and discuss this complex, churning electorate. In doing so we're tapping into something fundamental about how we perceive the world: not as a sequence of singular individuals, but rather as a massive set of overlapping taxonomies that, taken together, comprise an impressively structured human experience. With fewer than 20 yes/no queries on category membership we can often identify a single object amidst a staggering breadth of possibilities. We've grouped everything that we know to exist and the groupings themselves are the primary subject of our thoughts. We can go the other direction as well -- taking an object and placing it in its many groups.

The best reason to revisit World of Warcraft by way of its new Legion expansion, out August 30 for PC and Mac, is that you're a lapsed devotee. You already grasp exactly the sort of rock-rolling footslog you're signing up for, though maybe a year or three or five away from the game was enough to bleed off any lingering longing to return. And to think: five years would be less than half the time Blizzard's online fantasy opus has been with us (of upwards of 12 million concurrently subscribed in 2010, and over 100 million if we're talking discrete accounts). Released in November 2004, it predates YouTube, Hurricane Katrina, Angela Merkel's chancellorship, Twitter, the Wii, the 2008 global financial crisis, Barack Obama's presidency, both the iPhone and iPad, the Deepwater Horizon explosion, Edward Snowden's leaks, Brexit, and of course, Donald Trump's candidacy. Which bring us to Legion, the sixth expansion to a game that's managed to buck all attempts at shelf life prognostication.

A square-jawed Presidential candidate with an embedded RFID microchip in his hand which opens doors for him, riding around the United States in a coffin-shaped vehicle called the "Immortality Bus," sounds like a scene out of a David Foster Wallace novel. That he wants you (yes, you!) to live forever. "The number one platform that we have at the transhumanist party and in my campaign is trying to overcome death with science and technology," Istvan told Digital Trends. "That is the central premise I've been running my campaign on." Like Donald Trump, 43-year-old Istvan is funding his own campaign.

Nasa has announced that it has found evidence of flowing water on Mars. Scientists have long speculated that Recurring Slope Lineae -- or dark patches -- on Mars were made up of briny water but the new findings prove that those patches are caused by liquid water, which it has established by finding hydrated salts. Several hundred camped outside the London store in Covent Garden. The 6s will have new features like a vastly improved camera and a pressure-sensitive "3D Touch" display

Mars, our neighboring planet, has captured people's imaginations for centuries. In the last 50 years, orbiters and rovers have been exploring its environment, its atmosphere, and its geology, sending back a wealth of information. The more we learn about the Red Planet, the more we want to send human explorers there. Is now the time to go? The National Aeronautics and Space Administration's priority is Mars, but there are conflicting opinions among US decision makers about the country's space-travel priorities.

A new signal has been found deep in space that could come from aliens. The community of astronomers and scientists who scan the skies with telescopes in an attempt to find extraterrestrial life is abuzz with excitement over a "strong signal" detected deep in space that could come from an alien civilisation. But some scientists have cautioned people not to get quite so excited – at least yet. The evidence remains preliminary and more work will need to be done to establish whether it is not just a mistake, let alone wheat it's actually a message from aliens. The message appeared to have come from a nearby star, HD164595, in the constellation Hercules.

Hundreds of billions of dollars lies dormant in data. From retailers and healthcare providers to government agencies, untapped data has the ability to generate savings, drive efficiencies, and make entirely new paradigm-changing discoveries. And while companies almost universally accept that data is the new gold, they still haven't managed to consistently put it to use and unlock its value. To do so requires the ability to not only crunch data and build algorithms, but the ability to deeply understand its significance and convey it to the decision-makers. And as business problems become increasingly complex and the volumes of data explode, it makes sense that the industry first-movers are turning to artificial intelligence (AI) to tackle the analytics problem head-on.

WASHINGTON – Federal aviation officials estimate there will be 600,000 commercial drone aircraft operating in the U.S. within the year as the result of new safety rules that opened the skies to them on Monday. Michael Huerta, head of the Federal Aviation Administration, said at a news conference that the rules governing the operation of small commercial drones are designed to protect safety without stifling innovation. Commercial operators initially complained that the new rules would be too rigid. The agency responded by creating a system to grant exemptions to the rules for companies that show they can operate safely.

Look alive, stateside drone pilots: the Federal Aviation Administration's initial set of operational rules for commercial UAV flights officially goes into effect today. Those rules were finalized back in June and govern any unmanned UAV under 55 pounds that is flown for "non-hobbyist purposes." As a quick refresher, drones that meet those qualifications can only operate during daylight hours (until dusk if the drone is equipped with warning lights) and must fly within the pilot's line of sight. Commercial drone pilots are also required to be at least 16 years old and will need to pass an Aeronautical Knowledge Test at a certified testing center before they can get their remote pilot certificate. Fully automated flights like the Amazon's planned delivery service or automated surveying devices are still not allowed.