Alexander Cohen

49 Flips | 7 Magazines | 2 Likes | @acohen5 | Keep up with Alexander Cohen on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “Alexander Cohen”

We did it! We 3D printed in space

Stuck in space without a part you desperately need? That’s not such a big deal anymore, thanks to a 3D printer that arrived at the International …

Nasa researches Star Trek warp drive for future space travel

Nasa scientists are developing a Star Trek-style “warp drive” that may eventually allow spacecraft to travel to the stars faster the speed of light.<p>Dr Harold White, a physicist at Nasa’s Johnson Space Centre, is conducting research to create a warp in space and time.<p>These so called “warp bubbles” …

15 Minutes With 'Adr1ft' On Oculus Rift -- Weightless, Terrified, And Mesmerized

One of the most captivating moments at this year’s Game Awards show — and an apparent hit with the live audience — was a new trailer for Adam Orth’s <i>Adr1ft.</i> I was enthralled with the premise, environment, and suspense depicted by the <i>Adr1ft</i> trailer, so when I had the opportunity to try the game for …

Russia Is Militarizing The Arctic

Moscow's new Northern Command will subsume the Russian Northern Fleet and form a unified military network of ground troops, aircraft, and naval vessels in an attempt to leverage Russia's strength in the great north.<p>Mark Galeotti, an NYU professor specializing in global affairs and Russian and …

NASA Prepares To Test New Spacecraft (That You've Likely Never Heard Of)

NASA is about to launch a new spaceship into orbit, and Mallory Loe has never heard of it.<p>"I mean, technically, NASA doesn't have another spaceship, do they?" she asks incredulously during a visit to the Smithsonian National Air and Space Museum in Washington, D.C.<p>She's hardly the only one who …

9 out of 10 problem drinkers in the U.S. aren't alcoholics, study says

You might think that people who throw back five or more drinks in a single outing or who down 15 or more drinks in a week are likely to be alcoholics. But a new study finds that the overwhelming majority of them are not.<p>Only one out of 10 Americans who drank enough to qualify as a binge drinker or …

11 really cool space missions

It's hard to top the tricky, first-ever landing on a comet, broadcast live on the Internet.<p>That's what space lovers and other curious types got on Wednesday, when the European Space Agency's probe Philae touched down on Comet 67P.<p>It was high drama that continued into the afternoon as questions …

Elon Musk plans satellite network

After shaking up the automotive world with his electric car venture, entrepreneur Elon Musk has set his sights skywards in a bid to bring the internet to the billions who still lack access.<p>Musk is working on an embryonic $1bn plan to launch 700 satellites that are less than half the size of the …

Sharing history with your son ... when your history is Halo

"This doesn't <i>look</i> like a new game," my son said. This is his first time seeing the remastered version of the first Halo game.<p>He's right, of course. <i>Halo: Combat Evolved Anniversary</i> in 2014 looks like a game that was released in 2001 and updated for the last-generation consoles. It doesn't look bad, …

Updated: Descent rudders deployed early before Virgin Galactic space plane’s crash

Virgin Galactic’s SpaceShipTwo crashed Friday after special tail “feathers” meant to increase drag deployed early, BBC reports. One pilot unlocked …

Here's How To Get A Job At The CIA

But speaking with Forbes, CIA head of recruitment Ron Patrick explained what it takes to get a job at one of the most secretive wings of the US government. And much of it looks like a pretty standard job application. You can even apply online now.<p>"Everything out there — movies and books — make it …

Exclusive: Watch 'Halo 2's' revamped cinematics in new trailer

You’ve never seen Master Chief look this good before.<p>While <i>Halo: The Master Chief Collection</i> combines the first edition of <i>Halo</i> with the following …

Three glasses of milk a day can lead to early death, warn scientists

Drinking three glasses of milk doubles the risk of early death and does not prevent broken bones, new research has shown<p>Milk has long been recommended by doctors and nutritionists for boosting calcium intake and helping to keep bones strong.<p>But research suggests that it does little to strengthen …

Rocket Explodes, Aborting NASA Mission to Resupply Space Station

No injuries were reported in the launch explosion on Tuesday.<p>In a fiery nighttime explosion, an Antares rocket carrying supplies to the International Space Station exploded seconds after launch on Tuesday.<p>Launched at 6:22 p.m. EDT, the spacecraft ascended straight up before an explosion blossomed …

What it took for Elon Musk’s SpaceX to disrupt Boeing, leapfrog NASA, and become a serious space company

<i>This story has been corrected.</i><p>The Space Exploration Technology rocket factory is a large, white hangar-like building near Los Angeles international airport, with a parking lot filled with late-model motorcycles and Tesla electric cars. The vast metal structure once churned out 747 fuselages for …

Space Travel

Crazy but true: Messenger spacecraft spots ice at Mercury's north pole

NASA's Messenger spacecraft has sent back its first visible-light images of water ice on Mercury, the tiny charbroiled planet that orbits closest to the sun.<p>The findings, described in the journal Geology, reveal that the ice deposits look surprisingly "fresh" – and hint that water could have been …

Powerful quantum computers move a step closer to reality

Researchers at the University of New South Wales have pushed quantum computers a step closer to reality, which one former NSA technical director says calls for a rethink in how the whole security of the internet is managed.<p>The Australian researchers claim to have developed two new types of quantum …

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Nobel Prize Goes to Inventors of Blue LED: Why It Was Revolutionary

Blue-light innovation paved the way for a transformation in lighting efficiency.<p>The 2014 Nobel Prize in physics went Tuesday to three scientists who gave lighting a makeover by inventing blue LED lights. The award recognizes a seemingly commonplace innovation, but one that has paved the way for a …

First hint of 'life after death' in biggest ever scientific study

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Why Suborbital Spaceflight Is So Difficult, and Dangerous

Ten years ago this Saturday, Scaled Composites won the $10 million Ansari X PRIZE by flying SpaceShipOne out of the atmosphere twice within a week. So why haven't commercial suborbital flights taken off yet?<p><i>Editor's Note: Today, October 31, 2014, a Virgin Galactic SpaceShipTwo crashed in the Mojave</i> …

Navy: Self-guided unmanned patrol boats make debut

Self-guided unmanned patrol boats that can leave warships they're protecting and swarm and attack potential threats on the water could join the Navy's fleet within a year, defense officials say, adding the new technology could one day help stop attacks like the deadly 2000 bombing of the USS Cole …

Physicists Observe New Particle That's Also Its Own 'Antiparticle'

After decades of searching, physicists at Princeton University say they've observed an elusive particle that behaves both like matter and antimatter.<p>Yes, the discovery is an exciting step forward for particle physics, but it may also help advance the creation of powerful quantum computers.<p>In the …

Bacteria in space could help create new vaccines - CNN.com

One challenge for astronauts is keeping well nourished and free of infection, especially on long-duration manned missions.<p>HIDE CAPTION<p>Staying healthy in space<p>Life support<p>Breeding bacteria<p>Spirulina<p>Super germs<p>Space Salmonella<p>Super food?<p><i>Editor's note: Since originally publishing this story, we have</i> …

Mass Effect: Born in Star Wars, probing Uranus

You'll learn a ton about Mass Effect, its development, its origins stretching back to BioWare's relationship with Star Wars, and even evolutionary truisms like where a predator species' eyeballs are located, in this latest breakdown of the RPG trilogy by Did You Know? Gaming.<p>That the Salarians are …

Army's Hypersonic Missile Explodes During Testing

Another barrier for an uncertain weapon.<p>The art of the war is complicated, but the science of war is often just a matter of shooting something pain-inducing at the other guy faster and from further away. The Army’s Advanced Hypersonic Weapon program wants to do just that, by creating a missile that …