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David Freeman
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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

가까운 거리에 있는 네쌍둥이 블랙홀이 발견됐다(사진)

(0) Comments | Posted May 21, 2015 | 4:37 PM

네 개의 쌍둥이 블랙홀이 굉장히 가까이 모여있는 게 발견되어 천문학자와 물리학자들이 공황상태에 빠졌다.

이건 뭐 거의 복권 당첨과 비슷한 확률이나 마찬가지다. 나우뉴스에 따르면 퀘이사는 지구에서 관측할 수 있는 가장 밝은 천체로 현재 거대 질량의 블랙홀임이 밝혀지고 있다. 이런 퀘이사는 보통 산개해 존재하지만 이번에 발견된...

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우리 몸을 지키는 암세포 연쇄살해자, T세포(동영상)

(0) Comments | Posted May 21, 2015 | 10:28 AM

“우리 안에는 죽이고 또 죽이는 것을 주요 기능으로 하는 연쇄살해자들이 우글거리고 있다.”

영화 예고편에 나올 것 같은 말이지만, 사실은 캠브리지 의학 연구원의 디렉터인 길리언 그리피스 교수의 말이다. 그리고 그녀는 SF가 아닌, 실제로 존재하는 면역 체계 세포 이야기를 하고 있는 것이다.

세포 장애성 'T...

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The Medusa Nebula Looks Way Prettier Than Its Namesake In Luminous New Photo

(0) Comments | Posted May 21, 2015 | 8:31 AM

Way out in space, some 1,500 light-years from Earth in the constellation Gemini, lies the Medusa Nebula--so named because its glowing snakelike filaments of gas resemble the serpents that crown the head of the the hideous Gorgon of Greek mythology.

Just have a look:

Whoops, wrong Medusa.

But do have a look at the right Medusa (below) as it appears in a stunning new photograph taken by the European Southern Observatory's Very Large Telescope in Chile.

One look at the image--said to be the most detailed ever taken of the planetary nebula--and you'll know right away why astronomers gave it that name:

medusa nebula

OK, maybe it's not entirely obvious why such a lovely nebula got such an ugly name. No matter. At least we can all agree that it's easier to remember the nebula by the name "Medusa" than by its other monikers, Abell 21 and Sharpless 2-274.

Whatever you call it, with a span of some 4 light-years the Medusa Nebula is as big as it is beautiful. It was discovered in 1955 by American astronomer George O. Abell.

Beautiful work, George. We'll never know exactly what it felt like to discover the nebula--but the zoom sequence below just might be the next best thing.

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'Serial Killers' Seek Out & Destroy Cancer Cells In Astonishing New Video

(88) Comments | Posted May 19, 2015 | 12:29 PM

"Inside all of us lurks an army of serial killers whose primary function is to kill again and again."

That might sound like something you'd hear in a movie preview. In fact, it's Prof. Gillian Griffiths, director of the Cambridge Institute for Medical Research in England, and she's...

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Discovery Of Rare Quadruple Quasar System Baffles Astronomers

(62) Comments | Posted May 18, 2015 | 9:13 AM

Call it the cosmic equivalent of winning the lottery: for the first time ever, astronomers have discovered four of the rare, super-luminous celestial objects known as quasars arrayed in close proximity to one another.

Quasars are typically separated by vast distances, and the discovery of this...

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오리지널 '우주전쟁' 일러스트가 경매에 나왔다(화보)

(0) Comments | Posted May 14, 2015 | 2:04 AM

화성인이 갑자기 지구를 침공해 모든 것을 파괴한다면 어떤 모습일까?


이미 스티븐 스필버그의 영화로도 만들어진 바 있는 SF 작가 H.G. 웰스의 전설적인 소설 '우주전쟁'의 1906년 판이 출간됐을 때, 책에 삽입된 일러스트는 20세기 초 사람들의 상상력을 그대로 보여줬다. 그리고 그 상상력은 지금도 여전히 유효하다.


브라질 아티스트

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‘Ponto gelado' misterioso pode ser a maior estrutura do universo

(0) Comments | Posted May 12, 2015 | 4:17 PM

Astrônomos estão comemorando a descoberta do que pode ser “a maior estrutura individual jamais identificada pela humanidade”

Não se trata de uma galáxia ou de um conjunto de galáxias – nem mesmo de um superconjunto de galáxias Não é nem mesmo uma estrutura propriamente dita....

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How The Shape Of Your Glass Affects Your Drinking Behavior, According To Science

(47) Comments | Posted May 9, 2015 | 9:00 AM

Can something as simple as changing the shape of glasses keep drinkers from going off the rails? New research from England suggests that people drink more slowly when alcohol is served in straight-sided glasses than when it's served in glasses with curved sides.

The research, conducted by scientists from the...

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Sun Fires Off Vast 'Filament' In Spectacular New Video

(10) Comments | Posted May 7, 2015 | 8:42 AM

WOW! The sun fired off a colossal filament on April 28-29, and the sun-watching Solar & Heliospheric Observatory (SOHO) spacecraft was able to catch the dramatic action in still images and video (see above).

A solar filament is a strand of hot plasma suspended above the sun's...

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Original 'War Of The World' Drawings Expected To Fetch Huge Sum At Auction

(16) Comments | Posted May 5, 2015 | 2:23 PM

What would it be like if bloodthirsty Martians came to Earth and laid waste to everyone and everything in their path?

If the drawings created for the 1906 edition of H.G. Wells' iconic science-fiction novel "The War of the Worlds" are any indication, it would be really, really bad....

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Mysterious Glow Detected At Center Of Milky Way Galaxy

(81) Comments | Posted May 4, 2015 | 9:09 AM

A mysterious glow has been observed at the center of the Milky Way, and scientists are struggling to figure out exactly what's causing it.

One possibility is that the high-energy X-rays that make up the baffling glow are "'howls' of dead stars as they feed on stellar companions." At...

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Mysterious 'Cold Spot' May Be The Largest Structure In The Universe

(197) Comments | Posted April 27, 2015 | 8:41 AM

Astronomers are crowing about the discovery of what they say just might be "the largest individual structure ever identified by humanity."

It's not a galaxy or a cluster of galaxies--nor even a galaxy supercluster. It's not even a structure in the usual sense. Rather, it's...

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Alienígenas podem pesar tanto quanto ursos polares e ser mais altos do que o homem mais alto da história

(23) Comments | Posted April 23, 2015 | 5:41 PM

Ninguém sabe se estamos realmente sozinhos ou se o universo está repleto de extraterrestres inteligentes.

Mas isso não impediu cientistas de tentar descobrir a possível forma dos alienígenas inteligentes.

E como o cosmólogo Fergus Simpson, da Universidade de Barcelona, argumenta em um novo estudo, a...

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Artificial Photosynthesis Advance Hailed As Major Breakthrough

(456) Comments | Posted April 20, 2015 | 9:05 AM

In what's being called a win-win for the environment and the production of renewable energy, researchers at Lawrence Berkeley National Laboratory and the University of California, Berkeley, have achieved a major breakthrough in artificial photosynthesis.

The scientists have created a system that can capture carbon dioxide emissions...

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SpaceX Launch Succeeds, But Effort To Land Booster On Platform Fails Again

(116) Comments | Posted April 13, 2015 | 2:04 PM

UPDATE: The SpaceX launch went off without a hitch, but the attempt to land the first-stage of the Falcon 9 booster on a floating platform failed again. SpaceX Elon Musk tweeted:
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외계인은 우리가 상상하는 것보다 훨씬 더 클지도 모른다

(0) Comments | Posted April 10, 2015 | 3:20 PM

이 넓은 우주에 우리가 혼자인지 아니면 머리 좋은 외계인과 함께 사는지, 아무도 모른다. 하지만 외계인이 어떤 모습일지를 상상하는 건 자유다.


스페인 바르셀로나 대학의 우주학자인 퍼거스 심슨 교수는 새로운 논문에서 대부분의 지성 있는 외계 종족은 300kg을 넘을 정도로 클 것이라고 발표했다. 평균적인 크기가 "북극곰과 비슷한 정도"라는 것이다....

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Aliens Might Weigh As Much As Polar Bears And Be Taller Than The Tallest Man Who Ever Lived

(254) Comments | Posted April 9, 2015 | 12:43 PM

No one really knows whether we're alone or if the universe is brimming with brainy extraterrestrials. But that hasn't stopped scientists from trying to figure out what form intelligent aliens might take.

And as University of Barcelona cosmologist Dr. Fergus Simpson argues in a new paper, most...

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This Budding Scientist-Entrepreneur Puts The Girls-In-STEM Problem In New Perspective

(28) Comments | Posted April 7, 2015 | 11:52 AM

There's no doubt that women tend to steer clear of careers in science and technology--the statistics simply don't lie.

Nor is there any doubt that the persistent gender disparity in STEM (science, technology, engineering, and math) fields represents a big problem for our competitiveness as...

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제인 구달에게 키스를(동영상)

(0) Comments | Posted April 6, 2015 | 1:48 PM

지난 4월 3일은 영장류의 어머니 제인 구달의 생일이었다.

한 평생 영장류를 연구하고 동물 보호에 힘을 쏟은 그녀에게 우리도 축하를 보내기 위해 작은 영상을 준비했다. 조금 늦었지만, "제인, 생일 축하해요!"


Animation by Eva Hill.

그녀에 대해 좀 더 자세히 알고 싶다면 여기로.

*본 기사는...

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Happy Birthday, Jane Goodall! Enjoy This Kiss From An Animated Ape

(5) Comments | Posted April 3, 2015 | 12:05 AM

Hoo hoo hoo hooray! Today is Jane Goodall's 81st birthday, and the beloved primatologist no doubt is fielding birthday wishes from her fans around the world.

HuffPost Science wanted to offer Dr. Goodall birthday wishes of our own, but "Happy Birthday, Jane" just didn't seem sufficient for...

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