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

Scientists Figure Out Pendulum Clock Puzzle That Dates Back Centuries

(0) Comments | Posted July 26, 2015 | 7:36 PM

Well, it's about time!

After more than three centuries, scientists say they have figured out why pendulum clocks...

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햇빛이 비치는 부분의 지구 사진이 사상 처음으로 공개되다(사진)

(0) Comments | Posted July 20, 2015 | 9:57 PM

earth


우주에서 지구를 찍은 사진은 그리 새로운 건 아니다. 하지만 이 사진은 정말 새로운 것이다.


나사의 심우주기후관측위성(DSCOVR)이 햇빛이 비치는 지구의 절반 사진을 최초로 촬영해 공개했다.


2015년 7월 6일 지구다색이미징카메라(EPIC)으로 지구에서 약 100만 마일((160만km) 거리에서 촬영한...

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Dramatic Photo Of Earth Is Probe's First To Show Entire Sunlit Side Of Planet

(0) Comments | Posted July 20, 2015 | 11:05 AM


Dramatic photos of Earth from space are nothing new, but few are as dramatic as this. NASA's Deep Space Climate Observatory (DSCOVR) satellite has captured its first photo to show the entire sunlit side of the Earth.


The space agency called the eye-popping image "EPIC" -- a...

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New Pluto Photos Show High Mountains, Giant ‘Tail'

(0) Comments | Posted July 17, 2015 | 10:56 AM

Hungry for more about Pluto? No worries. Today NASA scientists served up another helping of photos and scientific findings from the New Horizons spacecraft, which made its historic flyby of the far-flung dwarf planet on July 14.

Previously released images revealed evidence of high peaks on Pluto and a deep canyon and a mysterious mountain on its biggest moon, Charon.

What will we see today? Scroll down to find out.

Pluto'€™s moon Nix. It'€™s about 25 miles across.

Graphic showing concentrated region of carbon monoxide.

Icy, frozen plains on Pluto.

Icy plains of Pluto 

Frozen plains of Pluto--vast and craterless. Similar surfaces can be seen on glaciers here on Earth.

Section of Pluto'€™s surface showing newly named mountains.

“We know the atmosphere is nitrogen,” New Horizons co-investigator Fran Bagenal, said of Pluto. Pluto has a tail of charged...

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Mystery Of Super-Hot 'Blue Hook' Stars Finally Solved

(58) Comments | Posted July 9, 2015 | 8:40 AM

Astronomers may have just solved a mystery 10 billion years in the making.

It has to do with so-called "blue hook" stars, which have less than half the mass of the sun but burn 10 times hotter and are far more luminous. No one was ever able to explain...

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The Science Of Race, Revisited

(318) Comments | Posted July 6, 2015 | 9:03 AM

There's no doubt that different groups of people can look very different from one another. But to contemporary anthropologists and sociologists, the notion that there are distinct "races" of human beings, each with its own specific attributes, doesn't make much sense.

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NASA 로버가 본 화성의 ‘피라미드'는 보기와는 다르다

(0) Comments | Posted June 30, 2015 | 5:21 PM

NASA의 큐리오시티 로버는 화성의 피라미드 사진을 찍었다. 적어도 일부 불가사의 애호가들은 그렇게 생각하는 것 같다.


파라노멀 크루시블이 새로 올린 유튜브 영상은 로버의 마스트캠 카메라가 2015년 5월 6일에 찍은 사진에 ‘거의 완벽한 디자인과 모양’을 갖춘 피라미드가 나오고, 이것은 ‘지적인 디자인의 결과이고 빛과 그림자의 눈속임은 절대...

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L'explication pour la «pyramide» aperçue sur Mars est vraiment simple

(2) Comments | Posted June 27, 2015 | 6:12 PM

Le rover Curiosity aurait photographié une pyramide bien spéciale sur Mars, ou du moins, c'est ce que plusieurs adeptes des mystères font valoir.

Une récente vidéo YouTube diffusée par Paranormal Crucible affirme qu'un cliché capté par la caméra Mastcam de Curiosity le 7 mai dernier montre...

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Mars 'Pyramid' Seen By NASA Rover Isn't Quite What It Seems

(362) Comments | Posted June 26, 2015 | 9:25 AM

NASA's Curiosity rover has photographed a pyramid on Mars--at least that's what some paranormal enthusiasts seem to think.

A new YouTube video from Paranormal Crucible maintains that a photo snapped by the rover's Mastcam camera on May 7, 2015 shows a pyramid of "near perfect design...

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First Color Movies Of Pluto And Its Biggest Moon Are Pretty Spectacular

(68) Comments | Posted June 23, 2015 | 9:04 AM

There's not much in the way of plot, and the images are badly pixelated. But two new videos from NASA's New Horizons mission are thrilling anyway. The brief animations--the mission's first color movies--show the complex "orbital dance" of Pluto and its biggest moon, Charon.

One of the videos...

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The Huffington Post Is Looking For An Associate Science Editor

(2) Comments | Posted June 18, 2015 | 5:08 PM

Location: New York City

Position Type: Full Time

About the Role:
The Huffington Post is seeking an associate editor to join the HuffPost Science team.

The ideal candidate will have a genuine passion for and broad knowledge of topics and trends in various fields of science and technology,...

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Earliest Stars In The Universe Found Lurking In Super-Luminous Galaxy

(77) Comments | Posted June 18, 2015 | 8:35 AM

With help from giant telescopes on the ground and in space, astronomers have detected what may be some of the first stars ever to have formed in the universe.

The massive blue stars were observed in a number of young and very bright galaxies, including one dubbed...

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밝은 조명이 불러온 도시 박쥐의 비극

(0) Comments | Posted June 9, 2015 | 3:32 PM

박쥐는 참 고달프다.

기후 변화에서 서식지 유실, 흰 코 증후군, 풍력 발전용 터빈 날개까지 박쥐의 생명을 위협하는 것들이 참 많다. 그리고 새 연구를 통해 밝혀진 위협이 또 하나 있다. 우리 도시의 빛 공해다.

6월 5일에 ‘글로벌 체인지 바이올로지’ 저널에 온라인으로 발표된 이 연구는 밝은...

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Samantha Cristoforetti Sets New Records For Longest Stint In Space

(10) Comments | Posted June 9, 2015 | 1:24 PM

Step aside, Sunita Williams. Italian astronaut Samantha Cristoforetti has set a new record for the longest uninterrupted stint in space by a woman--as well as the longest such stint by any ESA astronaut.

(Scroll down for photos.)

Cristoforetti, 38, who is scheduled to return to Earth...

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Fly Around Ceres In This Dramatic New NASA Video

(16) Comments | Posted June 9, 2015 | 8:25 AM

NASA has released a dramatic new video of the dwarf planet Ceres (above).

The black-and-white animation lets viewers fly around the mysterious orb from an altitude of 8,400 miles, compressing the nine-hour Cererian day into 75 seconds. It was assembled from 80 images taken by the space agency's Dawn spacecraft.

"We used a three-dimensional terrain model that we had produced based on the images acquired so far," Ralf Jaumann, a Dawn team member with the German Aerospace Center in Berlin, said in a written statement. "They will become increasingly detailed as the mission progresses--with each additional orbit bringing us closer to the surface."

(Story continues below diagram.)
mission
Diagram showing path taken by Dawn spacecraft.

Just don't believe everything you see in the video, which was posted to YouTube on June 8, 2015: NASA doubled the vertical dimension and added a star field in the background.

Dawn was launched in 2007. It spent 14 months studying the rocky protoplanet Vesta before entering orbit around Ceres on March 6, 2015.
...

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Bright Lights Bring More Bad News For Urban Bats

(21) Comments | Posted June 8, 2015 | 8:45 AM

Bats just don't seem to be able to catch a break.

The nocturnal creatures are facing all sorts of potentially lethal threats, from climate change and habitat loss to white nose syndrome to the spinning blades of wind turbines. And an...

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Blue Spots On Mars Look Like Liquid Water--But Aren't

(64) Comments | Posted June 3, 2015 | 8:30 AM

A startling new photograph of Mars shows beautiful blue pools of water just right for a refreshing swim--or so it seems.

mars blue

In fact, the blue regions in the image--which was taken by the European Space Agency's Mars Express orbiter--are dark...

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해부용 시체를 대신할 '인공 카데바'가 등장했다(동영상)

(0) Comments | Posted June 1, 2015 | 10:20 PM


의대에서는 인간의 신체를 잘 이해하기 위해 '카데바'라고 해부용 시체를 사용한다. 그러나 지금부터는 카데바 대신 인공 카데바를 사용하게 될지도 모른다.


미국 플로리다주 탬파 베이의 SynDaver 실험실이 만든 '인공 카데바'가 최근 ABC 채널의 쇼 '샤크 탱크(Shark Tank)'를 통해...

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Como o formato do copo afeta o quanto você bebe, segundo a ciência

(1) Comments | Posted May 28, 2015 | 6:14 PM

Será que algo tão simples como mudar o formato do copo pode evitar que as pessoas bebam demais?

Uma nova pesquisa realizada na Inglaterra sugere que as pessoas bebem mais devagar quando a bebida é servida em copos com lados retos do que quando se usam copos com lados...

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Here's What The Solar System Looked Like As A 'Toddler,' According To Astronomers

(14) Comments | Posted May 28, 2015 | 8:45 AM

What did the solar system look like in its early days, and exactly how did it evolve? No one knows for sure, because no one was around billions of years ago to snap a photo or watch the action unfold.

But astronomers are crowing about the recent...

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