Overwatch sounds like a game I shouldn't want to play: a hero-focused team shooter that seems aimed at players given to godlike acts of ballistic skill. But I should know better. This is Blizzard we're talking about, after all, a studio that turned a generic fantasy-verse born from a niche real-time strategy game into a global online roleplaying sensation. After chatting with Overwatch co-director Jeffrey Kaplan, I'm almost convinced it's a game for me--the sort of lapsed, Quake-era clanner who has lost interest in competitive shooters. Here, by way of our lightly edited conversation, is a rundown of why.

The fear of the Earth being struck by an enormous asteroid has been the source for many science fiction films, but the threat of mankind being wiped out by an impact may be lower than we think. Until now, scientists used the strength of rocks found on Earth to model the damage these giant space boulders would cause. But researchers have now sacrificed a rare sample of meteorites to test the physical properties of asteroids and found they crumbled more easily than expected. It is an idea popular in science fiction, but the threat of mankind being wiped out by asteroids (artist's impression pictured) might be a lot lower than you think. Even though space rocks fall to Earth as meteorites all the time, very few are recovered.

LAGOS--Nigeria is beating the West at its own word game, using a strategy that sounds like Scrabble sacrilege. By relentlessly studying short words, this country of 500 languages has risen to dominate English's top lexical contest. Last November, for the final of Scrabble's 32-round World Championship in Australia, Nigeria's winningest wordsmith, Wellington Jighere, defeated Britain's Lewis Mackay, in a victory that led morning news broadcasts in his homeland half a world away. It was the crowning achievement for a nation that boasts more top-200 Scrabble players than any other country, including the U.K., Nigeria's former colonizer and one of the board game's legacy powers. "In other countries they see it as a game," said Mr. Jighere, now a borderline celebrity and talent scout for one of the world's few government-backed national programs.

U.S. special operations forces launched an airstrike Saturday against Taliban leader Mullah Akhtar Mohammad Mansour in a remote town in Pakistan, U.S. military officials said, and initial evidence suggested Mansour was killed. U.S. military and intelligence officers were still assessing the results of the strike by multiple armed drones, they cautioned. The operation, which was authorized by President Obama and took place around 3 p.m. local time (3 a.m. Pacific time), hit Mansour as he traveled in a vehicle with another man along the Pakistan-Afghanistan border, southwest of the town of Ahmad Wal. Mansour has emerged as the leader of a resurgent Taliban that in recent months has mounted a powerful insurgency against the Afghan government in a string of attacks that have killed civilians, Afghan forces and U.S. military personnel.

By rights, Yuval Noah Harari should be an anonymous academic buried in an obscure university department somewhere toiling away on his somewhat dusty discipline – medieval military history. He's a professor of history at the Hebrew University of Jerusalem and there is almost nothing in his background to suggest that he would write a book that has become one of the most talked about non-fiction bestsellers of the year – Sapiens. Or that he'd join the globetrotting TED-ocracy: the academic superstars who travel the world delivering keynotes on zeitgeisty topics, in Harari's case, the not inconsiderable subject of the history of the whole of mankind. When I meet him, he's just been the star turn at Penguin Random House's global sales conference. In May, he packed out Hay. Earlier this month, he delivered a TED talk.

Oussama Khatib held his breath as he swam through the wreck of La Lune, 100 meters below the Mediterranean. The flagship of King Louis XIV sank here in 1664, 20 miles off the southern coast of France, and no human had touched the ruins – or the countless treasures and artifacts the ship once carried – in the centuries since. OceanOne, a humanoid robotic diver from Stanford, allows new underwater exploration capabilities. With guidance from a team of skilled deep-sea archaeologists who had studied the site, Khatib, a professor of computer science at Stanford, spotted a grapefruit-size vase. He hovered precisely over the vase, reached out, felt its contours and weight, and stuck a finger inside to get a good grip.

In the past few weeks, you may have noticed a mysterious message popping up on your iPhone after hours of non-use. A seemingly new prompt requires users to enter a passcode to access their phone, even though they have Touch ID enabled – but only if it hasn't been unlocked using its passcode in six days, and the Touch ID hasn't been used within the last eight hours. Though Apple has said the feature was added with the release of iOS 9, users have just now begun to see it, causing many to speculate about its connection to the firm's recent tensions with the FBI. A seemingly new prompt requires users to enter a passcode to access their phone, even though they have Touch ID enabled – but only if it hasn't been unlocked using its passcode in six days, and the Touch ID hasn't been used within the last eight hours According to the iOS Security Guide published earlier this month, there are a number of situations in which you may have to use your passcode to unlock your iPhone or iPad even if Touch ID is enabled. According to Macworld, the message reads'The passcode has not been used to unlock the device in the last six days and Touch ID has not unlocked the device in the last eight hours.'

For the sake of brevity, not all the relevant data and code are displayed in this post but can rather be found here. And you can visit the final working web application here. The Rugby World Cup (RWC) is here! With many fans around the world excited to see the action unfold over the next month and a half. If you've never heard of the sport, whatisrugby.com

Unless you've been living under a rock (which will likely be affected by climate change soon, by the way), you know that between forest fires, illegal deforestation, poaching, and other crimes, an enormity of environmental issues puts our ecosystems in danger. According to the National Science Foundation, a century ago, more than 60,000 tigers roamed in the wild. Now, there are as few as 3,000 remaining. While human patrols can directly protect endangered animals, many protection agencies lack the resources necessary to cover the appropriate amount of ground, especially in large national parks where many of these illicit activities might occur. In 2011, Eve McDonald-Madden and her colleagues at the University of Queensland in Australia lamented that a lack of money limits the impact that management strategies can have on preventing the extinction of a species.

Wordnets are an effective resource for natural language processing and information retrieval, especially for semantic processing and meaning related tasks. So far, wordnets have been constructed for many languages. However, the automatic development of wordnets for low-resource languages has not been well studied. In this paper, an Expectation-Maximization algorithm is used to create high quality and large scale wordnets for poorresource languages. The proposed method benefits from possessing cross-lingual word sense disambiguation and develops a wordnet by only using a bi-lingual dictionary and a monolingual corpus. The proposed method has been executed with Persian language and the resulting wordnet has been evaluated through several experiments. The results show that the induced wordnet has a precision score of 90% and a recall score of 35%.