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David Freeman
David Freeman is the senior science editor of The Huffington Post in New York City and the host of Science Insider, a weekly radio program on an NPR station in Sharon, CT.

Entries by David Freeman

Sun Unleashes Powerful Solar Flares, Disrupting Radio Communications

(4) Comments | Posted October 22, 2014 | 3:30 PM

The sun is at it again, unleashing a series of solar flares including one that caused brief disruptions in communication systems.

NASA said its space-based Solar Dynamics Observatory observed an X-class solar flare that peaked at 1:01 a.m. EDT on Oct. 19. Another X-class flare came...

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You Know How The Universe Got Here. This Is Where It's Headed

(174) Comments | Posted October 20, 2014 | 3:35 PM

Where did the universe come from, and how is it evolving? Those questions made little sense a century or so ago, before the existence of the Big Bang theory.

"When Einstein was developing his general theory of relativity in 1915, the scientific picture of the universe was...

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Astronomers Create First 3D Map Of Hidden Universe

(60) Comments | Posted October 20, 2014 | 9:17 AM

Mapping the cosmos sounds like a daunting challenge, but now an international team of astronomers has managed to do just that.

Using a powerful new computer algorithm and observational data from one of the world's biggest telescopes, the astronomers have created a luminous 3D map of the...

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New Study Suggests 21-Day Ebola Quarantine Is Dangerously Short

(308) Comments | Posted October 17, 2014 | 11:37 AM

Hospital workers and public health officials in the U.S. have come under fire for a series of missteps in their response to the Ebola crisis, from initially misdiagnosing Thomas Eric Duncan to allowing a nurse who cared for him at a Dallas hospital to fly on...

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Scary New Simulation Shows Mars One Colonists Could Suffocate, Starve

(124) Comments | Posted October 14, 2014 | 4:39 PM

Thinking of joining the Mars One mission to establish a permanent colony on the red planet? Here's something to consider before signing on the dotted line: a new computer simulation by students at MIT shows that the colonists would likely face a range of deadly problems,...

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Poop Pills May Offer A Better Way To Eradicate This Deadly Infection

(19) Comments | Posted October 14, 2014 | 8:37 AM

A promising new study puts a decidedly positive spin on the epithet "eat sh**."

It shows that pills containing human fecal matter are an effective treatment for people suffering from potentially deadly infections caused by the bacterium known as Clostridium difficile.

The pills may be a more palatable alternative...

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The Amazing Story Behind The Story Of NASA's Planet-Hunting Kepler Mission

(6) Comments | Posted October 13, 2014 | 8:10 AM

How many planets are there? Not long ago the answer to that question was simple: eight, or nine if you counted Pluto (now officially a dwarf planet). The only planets known to exist were the ones in our own solar system.

NASA's Kepler probe has changed all that....

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NASA Stumbles Upon A Dead Star That's 10 Million Times Brighter Than The Sun

(77) Comments | Posted October 10, 2014 | 8:07 AM

Think our sun is bright? NASA says its NuSTAR space-based X-ray telescope has detected a dead star that pumps out as much energy as 10 million suns.

"You might think of this pulsar as the 'Mighty Mouse' of stellar remnants," Dr. Fiona A. Harrison, professor of...

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What Next For The Ebola Outbreak? Here's What The Math Says

(199) Comments | Posted October 6, 2014 | 9:04 AM

Everyone's talking about Ebola--and no wonder, now that the deadly disease has been diagnosed in the U.S. for the first time ever.

Will the mini-outbreak in Dallas be contained, as public health officials keep reassuring us?

The short answer is "yes," Dr. Lauren Ancel Meyers,...

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Here's Why The Night Sky Is Dark Even Though Jillions Of Stars Are Shining Light Our Way

(28) Comments | Posted October 6, 2014 | 8:19 AM

There are a lot of stars out there--an estimated 70 billion trillion. With so many stars beaming their light our way, it seems only logical that the night sky would be as bright as day.

This is the essence of the so-called dark night sky paradox,...

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This Scientist Has A Surprising Idea For Protecting Football Players

(62) Comments | Posted October 5, 2014 | 9:17 AM

You don't have to be a scientist to enjoy watching football, but being one certainly changes your perspective on the game.

Just ask Dr. Ainissa Ramirez, co-author of the 2013 book Newton's Football: The Science Behind America's Game.

As the materials-scientist-turned-science-evangelist makes clear in this...

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Reptiles, Sharks May Be More Like Us Than You Ever Thought

(25) Comments | Posted October 2, 2014 | 9:05 AM

They may not be the brightest bulbs in the terrarium, but surprising new research shows for the first time ever that reptiles are able to learn by watching others (see video above). Known as "social imitation," this ability is something commonly associated primarily with humans and...

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You're Not A Horrible Person If You Root For The Shark Instead Of The Seal. Here's Why

(38) Comments | Posted October 2, 2014 | 8:33 AM

Predation isn't pretty, and it's hard to root for the predator when the prey is something cute and cuddly, like a little bunny or a baby seal. It all just seems so unfair. (Scroll down for a look at some gruesome images if you're unsure...)

But wildlife biologists...

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How A Vatican Astronomer Views The Science-Religion Divide

(445) Comments | Posted September 29, 2014 | 3:16 PM

Are science and religion fundamentally at odds?

Many well-known astronomers and astrophysicists think so, including Stephen Hawking, who in a recent interview said, "Before we understood science, it was natural to believe that God created the universe, but now science offers a more convincing explanation... I'm an...

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This Physicist Says She Has Proof Black Holes Simply Don't Exist

(308) Comments | Posted September 29, 2014 | 8:43 AM

Scientists have lots of bizarre theories about black holes. Black holes gobble up everything that gets too close, even light. They can cause time to slow. They contain entire universes.

But here's something about black holes you might not have heard: they simply don't exist.

At least that's...

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The Surprising Science Of Low-Carb Diets

(163) Comments | Posted September 23, 2014 | 9:23 AM

What's the best way to eat if you're trying to lose weight? For years, doctors and dietitians have encouraged us to eat less dietary fat. But growing evidence suggests that obesity comes not from eating too much fat but too many carbs.

One key study conducted recently by Dr. Lydia...

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Hubble Telescope Study Reveals Evidence Of Bias Against Women Astronomers

(14) Comments | Posted September 23, 2014 | 9:00 AM

Research shows that sexism remains a problem for female scientists here on Earth, and a disturbing new study suggests it may also exist in space--at least as high as the orbit of the Hubble Space Telescope (HST).

The study shows that women astronomers...

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'Star Of David' Molecule Created After Decades Of Effort

(52) Comments | Posted September 22, 2014 | 1:18 PM

After more than 25 years of effort, scientists say they've finally succeeded at synthesizing a so-called "Star of David" molecule.

The complex molecule--created at the University of Manchester in England--is made up of two molecular triangles that were coaxed to join up via a "self-assembly" process familiar...

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왜소은하 속 '슈퍼 블랙홀'이 발견되다

(6) Comments | Posted September 20, 2014 | 12:10 AM

가장 작은 은하계가 어마어마한 블랙홀을 품고 있었다.

일단의 천문학자들이 허블 우주 망원경의 데이터를 이용해 현재까지 알려진 가장 작은 은하계 속에 있는 거대한 블랙홀을 발견했다.

'슈퍼 블랙홀'은 심지어 우리 은하수 중심에 위치한 블랙홀보다 다섯 배나 질량이 크다. 그러나 블랙홀이 위치한 왜소은하

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Supermassive Black Hole Discovered Inside Tiny Dwarf Galaxy

(150) Comments | Posted September 19, 2014 | 10:20 AM

Talk about big things coming in little packages! Astronomers using data from the Hubble Space Telescope say they've discovered a ginormous black hole within one of the tiniest galaxies known to exist.

The supermassive black hole is about five times more massive than the one at the...

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