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

The radio spectrum is a mess: It's congested, expensive, and there's no room for expansion. But DARPA has a plan to change that, by building a system where radio waves can work together using artificial intelligence, rathe than fighting for space. DARPA launched its latest Grand Challenge last week, and it plans to encourage researchers around the world to develop "smart systems that collaboratively, rather than competitively, adapt in real time to today's fast-changing, congested spectrum environment... to maximize the flow of radio frequency." That sounds exciting, because making radio frequency flow more easily means--theoretically, at least--faster data rates, fewer dropped signals, and cheaper connections. How does DARPA plan to do it?

In 1992, as personal computers were beginning to reshape everyday life, Sony co-founder Masaru Ibuka wrote that computing could never overshadow human achievement, because of one missing quality: creativity. "A computer isn't creative on its own because it is programmed to behave in a predictable way," he wrote in Fortune. "Creativity comes from looking for the unexpected and stepping outside your own experience. Computers simply cannot do that." But new projects are challenging the question of computer creativity--like Beyond the Fence, the world's first computer-generated musical, which opens at the Arts Theater in London today.

A year into the competition, the Korbell team won the first Progress Prize with an 8.43% improvement. They reported more than 2000 hours of work in order to come up with the final combination of 107 algorithms that gave them this prize. And, they gave us the source code. We looked at the two underlying algorithms with the best performance in the ensemble: Matrix Factorization (which the community generally called SVD,Singular Value Decomposition) and Restricted Boltzmann Machines (RBM). SVD by itself provided a 0.8914 RMSE, while RBM alone provided a competitive but slightly worse 0.8990 RMSE.

The radio spectrum is a mess: It's congested, expensive and there's no room for expansion. But DARPA has a plan to change that, by building a system where radio waves can work together using artificial intelligence, rathe than fighting for space. DARPA launched its latest Grand Challenge last week, and it plans to encourage researchers around the world to develop "smart systems that collaboratively, rather than competitively, adapt in real time to today's fast-changing, congested spectrum environment... to maximize the flow of radio frequency." That sounds exciting, because making radio frequency flow more easily means--theoretically, at least --faster data rates, fewer dropped signals, and cheaper connections. How does it plan to do it?

Remember jumping in your seat the first time you saw Jurassic Park? That was just a movie, and you were probably sitting in a comfy theater chair. Imagine finding yourself coming face to face with what looks like a real dinosaur in a deserted parking garage. If you don't have a heart attack, you'll still have to find a change of pants.

Microsoft released an interesting new Artificial Intelligence (AI) technology this week, but unfortunately for them the bot got a little out of hand. Tay, a chatbot programmed with the personality of a cheeky teenage girl, took to twitter under the handle @Tayandyou. She was designed to "engage and entertain people where they connect with each other online through casual and playful conversation." She is a learning AI, and the more she chatted with other twitter users, the smarter she became, with the intention of personalizing the conversation towards the other user. She was targeted to 18-24 year old twitter users in the US.

Young people in India have traditionally had their marriages arranged by their families but now, armed with smartphones and dating apps, some are taking control of their own love lives. Simon Maybin spoke to three couples who met online. Two pairs of eyes meet surreptitiously, then flit away from each other, their owners hoping no-one has noticed. No Bollywood love song plays - in this real-life romance, the only soundtrack is the unmistakable clackety-clack of a train beetling across eastern India. The eyes belong to 22-year-old Varsha and Rahul who is 27.

USA TODAY's Ed Baig tests Amazon Echo's personal digital assistant. It's not an easy product to get and you have to wait for an invitation to buy the product. Find out how Alexa relates to Siri, benefits and flaws. In this March 2, 2016 photo, David Limp, Amazon Senior Vice President of Devices, center, speaks behind an Amazon Echo in San Francisco. Amazon.com is introducing two devices, the Amazon Tap and Echo Dot, that are designed to amplify the role that its voice-controlled assistant Alexa plays in people's homes and lives.

"The robots are coming" is not something Paul Revere said during the American Revolution, but it is certainly something many people have uttered over the years. So have we finally reached the tipping point where artificial intelligence and robots will begin to take over human jobs en masse? Perhaps not, but we are closer to the time when they will be even more essential assets and presences in the workforce, explains Martin Ford, the author of the book "Rise of the Robots." I caught up with Ford at The Economist magazine's Innovation Forum event, which was held earlier this month. He pointed out that artificial intelligence is making its way into sectors that were once manned by only man, including the legal profession, where computer systems such as Watson could muscle in on human territory to provide legal counsel, and even journalism where stories are being written without direct human input about some articles.