Alex Franklin

11 Flips | 2 Magazines | @AlexFranklin | Keep up with Alex Franklin 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 “Alex Franklin”

Image overload: Help us sort it all out, NASA requests

NASA is asking for your help.<p>No, you do not get to go to space.<p>You do, however, get to view hundreds of thousands of images taken from space. Via The Gateway to Astronaut Photography of Earth, NASA is making available images ranging from the Mercury missions of the 1960s to photos recently snapped …

Black Holes? I'll Take a Medium, Please

In one sense, black holes are just ridiculously exotic. Their surface gravity is so powerful that even something as fast as light can’t escape …

Study: sunshine 'could help to stave off dementia'

Low levels of vitamin D appear to increase the risk of conditions such as Alzheimer's disease, major study finds<p>Plenty of sunshine in retirement could reduce the risk of dementia, a major trial suggests.<p>The new study - the largest of its kind – found that a severe lack of vitamin D among over 65s …

Do You Want To Be Happy? Don't Set Your Expectations Too High

Sure, money can't buy you love, but it's hard to imagine that winning rewards won't make us happy.<p>It does, researchers say, but only if our immediate expectations aren't bigger than the size of the payoff. Disappointment squelches happiness.<p>"Your happiness increases only if you do better than you …

Aspirin a day could dramatically cut cancer risk, says biggest study yet

An aspirin a day could dramatically cut people's chances of getting and dying from common cancers, according to the most detailed review yet of the cheap drug's ability to stem disease.<p>More than 130,000 deaths would be avoided over a 20-year period if Britain's 50- to 64-year-olds took a daily …

Modified Israeli Drone Seen Flying Over Gaza

It was likely unarmed, but still a weapon of war.<p>Drones are the public face of counter-insurgency. Mechanical, unmanned, distant, they fly above battlefields from Pakistan to Yemen, their unblinking electronic eyes streaming video back to uniformed pilots secure on military bases elsewhere. The …

Drones

EarthSky’s 2018 meteor shower guide

Plan ahead now for an awesome year of meteor-watching. Good news! In 2018, the year’s 2 most reliable showers – August Perseids and December Geminids …

Saturn kisses the dark edge of the moon

Astrophotographer Colin Legg in Western Australia caught the August 4, 2014 occultation of Saturn by the moon. He called it “a brilliant thing to …

Astronomy

Could We Build a Disk Bigger Than a Star?

In our cosmic megastructures series, PM explores some of the key engineering and design challenges in constructing gigantic structures for use by humankind in space. Today: the Alderson disk, an astoundingly enormous sun-encircling object.<p><b>Megastructure name:</b> Alderson disk<p><b>Named after:</b> The late Jet …

Universe

There's a pill that prevents HIV — why are only gay men talking about it?

Truvada is the HIV prevention pill that puts women in control<p>A few months ago, the CDC recommended Truvada, the HIV prevention pill, to anyone at risk of infection. <i>The Verge</i> and other media outlets — including <i>The New York Times</i>, <i>The Washington Post</i>, and <i>Slate</i> — covered the news in a big way, because …