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Sep 28, 2015
NASA Says There’s Evidence Of Flowing Water On Mars
Posted by Shailesh Prasad in category: space
Sep 28, 2015
NASA Confirms Evidence That Liquid Water Flows on Today’s Mars
Posted by Amnon H. Eden in category: space
New findings from NASA’s Mars Reconnaissance Orbiter (MRO) provide the strongest evidence yet that liquid water flows intermittently on present-day Mars.
Using an imaging spectrometer on MRO, researchers detected signatures of hydrated minerals on slopes where mysterious streaks are seen on the Red Planet. These darkish streaks appear to ebb and flow over time. They darken and appear to flow down steep slopes during warm seasons, and then fade in cooler seasons. They appear in several locations on Mars when temperatures are above minus 10 degrees Fahrenheit (minus 23 Celsius), and disappear at colder times.
“Our quest on Mars has been to ‘follow the water,’ in our search for life in the universe, and now we have convincing science that validates what we’ve long suspected,” said John Grunsfeld, astronaut and associate administrator of NASA’s Science Mission Directorate in Washington. “This is a significant development, as it appears to confirm that water — albeit briny — is flowing today on the surface of Mars.”
Sep 28, 2015
Black hole is 35,000,000 times larger than the sun — CNN Video
Posted by Sean Brazell in category: cosmology
Astronomers have discovered a supermassive black hole at the center of a newly-discovered galaxy, and it’s 30 times bigger than they thought possible.
Sep 28, 2015
Intelligent machines: Making AI work in the real world — By Eric Schmidt | BBC News
Posted by Odette Bohr Dienel in categories: big data, computing, innovation, machine learning, robotics/AI, software
“As part of the BBC’s Intelligent Machines season, Google’s Eric Schmidt has penned an exclusive article on how he sees artificial intelligence developing, why it is experiencing such a renaissance and where it will go next.”
Sep 28, 2015
Artificial Intelligence Must Answer to Its Creators
Posted by Dan Faggella in categories: big data, computing, driverless cars, existential risks
Although it was made in 1968, to many people, the renegade HAL 9000 computer in the film 2001: A Space Odyssey still represents the potential danger of real-life artificial intelligence. However, according to Mathematician, Computer Visionary and Author Dr. John MacCormick, the scenario of computers run amok depicted in the film – and in just about every other genre of science fiction – will never happen.
“Right from the start of computing, people realized these things were not just going to be crunching numbers, but could solve other types of problems,” MacCormick said during a recent interview with TechEmergence. “They quickly discovered computers couldn’t do things as easily as they thought.”
While MacCormick is quick to acknowledge modern advances in artificial intelligence, he’s also very conscious of its ongoing limitations, specifically replicating human vision. “The sub-field where we try to emulate the human visual system turned out to be one of the toughest nuts to crack in the whole field of AI,” he said. “Object recognition systems today are phenomenally good compared to what they were 20 years ago, but they’re still far, far inferior to the capabilities of a human.”
To compensate for its limitations, MacCormick notes that other technologies have been developed that, while they’re considered by many to be artificially intelligent, don’t rely on AI. As an example, he pointed to Google’s self-driving car. “If you look at the Google self-driving car, the AI vision systems are there, but they don’t rely on them,” MacCormick said. “In terms of recognizing lane markings on the road or obstructions, they’re going to rely on other sensors that are more reliable, such as GPS, to get an exact location.”
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Sep 28, 2015
NASA confirms that liquid water flows on Mars
Posted by Sean Brazell in categories: chemistry, humor, space
Liquid water exists on the surface of Mars during the planet’s warmer seasons, according to new research published in Nature Geosciences . This revelation comes from new spectral data gathered by NASA’s Mars Reconnaissance Orbiter (MRO), a spacecraft that studies the planet from orbit. The orbiter analyzed the chemistry of weird dark streaks that have been known to appear and disappear seasonally on the Martian surface. The analysis confirms that these streaks are formed by briny — or salty — water flowing downhill on Mars.
NASA has advertised these findings as the solution to a major Mars mystery: does the Red Planet truly have liquid water on its surface? Researchers have known that water exists in ice form on Mars, but it’s never been confirmed if water can remain in a liquid state. The space agency is claiming that we now have that answer.
This isn’t the first study to suggest liquid water is present in some form on Mars. Scientists have theorized for years that Mars was once home to a large ocean more than 4 billion years ago. And recent findings from the Mars Curiosity rover suggest that liquid water exists just underneath the Martian surface. The discovery of water on Mars has almost become a joke among planetary scientists. Alfred McEwen, a planetary geologist at Planetary Image Research Laboratory who also worked on this research, wrote in Scientific American that the studies have become extremely commonplace: “Congratulations — you’ve discovered water on Mars for the 1,000th time!” he joked.
Sep 28, 2015
NASA Finds “Strong” Evidence For Water On Mars
Posted by Bryan Gatton in categories: alien life, space
Sep 28, 2015
This Company Is Building Drones With Lasers On Top
Posted by Gerard Bain in categories: drones, military
https://youtube.com/watch?v=D0DbgNju2wE
Say hello to the drones of the future. They’re gorgeous, sophisticated, and they’ve got high-energy lasers.
The body of the drone will look familiar to those who are familiar with current drones as those lasers will be riding shotgun–quite literally–on General Atomics Aeronautical Systems’s Avenger. The company, also responsible for the Reaper, is embarking on a privately-funded study to figure out how to incorporate 150-kilowatt solid-state laser onto the drone, according to an interview with Defenseone. Depending on the success of the study, the company is hoping to have the laser drones up and running by 2017.
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Sep 27, 2015
This is world’s first biolimb, a rat forelimb grown in the lab
Posted by Bryan Gatton in categories: bioengineering, robotics/AI
From biohacking to robotics, they’re all on the lookout for the holy grail of offering amputees a fully functional replacement limb. But how awesome would it be if you could regrow your own arm in the same manner as a spider? A rat forelimb entirely created form living cells.
