David Freeman
GET UPDATES FROM 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

나사의 우주망원경 뉴스타로 찍은 놀라운 태양 엑스레이 사진이 공개되다(사진)

(0) Comments | Posted December 24, 2014 | 2:42 PM

나사가 새 우주망원경 뉴스타(NuSTAR)를 개발한 이유는 블랙홀 같은 먼 우주의 물체를 관찰하기 위해서였다. 그런데 엄청나게 미세한 이 망원경으로 태양의 멋진 이미지도 볼 수 있다는 사실이 밝혀졌다.


나사가 지난 22일 발표한 아래의 기막힌 사진을 보면 무슨 이야기인지 이해가 될 것이다


뉴스타가 개발된 이유는 블랙홀...

Read Post

Quantum Physics Just Got A Tiny Bit Easier To Understand, As Two Oddities Merge Into One

(99) Comments | Posted December 24, 2014 | 12:32 PM

No one is about to claim that quantum physics is now easy to understand, but maybe it's not quite as devilishly complicated as we thought.

New research suggests that two of the quantum world's most mysterious features--the uncertainty principle and wave-particle duality--are simply two sides of a...

Read Post

Stunning X-Ray Portrait Of The Sun Snapped By NASA's NuSTAR Space Telescope

(12) Comments | Posted December 22, 2014 | 5:07 PM

NuSTAR may have been built to observe black holes and other objects in deep space, but NASA's supersensitive space telescope can also do a bang-up job of imaging the sun. Just have a look at this glorious new photo released by the space agency on Dec....

Read Post

Lonely Dwarf Galaxy Spotted 7 Million Light-Years From The Milky Way

(12) Comments | Posted December 22, 2014 | 1:07 PM

The Milky Way's neighborhood is a bit more crowded than we thought.

Using data from NASA's Hubble Space Telescope, a Russian-American team of astronomers has discovered an isolated dwarf galaxy about 7 million light-years away from our galaxy.

Dubbed KKs3, the "dwarf spheroidal" galaxy is located in...

Read Post

These Hot Blue Stars Will Fuse To Form One 'Supermassive' Star 60 Times The Size Of The Sun

(88) Comments | Posted December 11, 2014 | 8:23 AM

Twins can be close, and that goes for stars as well as people. In some cases, stars get so close that they merge--and new research by astronomers in Spain suggests that's just what's happening with the binary star system known as MY Camelopardalis.

Located in a small star...

Read Post

Rosetta Data Suggest Earth's Water Didn't Come From Comets After All

(153) Comments | Posted December 10, 2014 | 6:54 PM

Where did the Earth get its water? For years some scientists have argued that it was brought here by water-bearing comets that smashed into our planet during its infancy.

But new data from the European Space Agency's Rosetta mission suggest that that theory is all wet....

Read Post

When Maggie Simpson Can Get A Paper Into A Science Journal, You Know You've Got Trouble

(13) Comments | Posted December 10, 2014 | 10:30 AM

Maggie Simpson is known more for her red pacifier than her gray matter. But somehow the youngest member of the fictional "Simpsons" clan had the brainpower to co-author a scientific paper and have it accepted for publication by not one but two real-life journals.

The unlikely tale begins...

Read Post

This Galaxy Is Belching Gas At 2 Million Miles An Hour

(19) Comments | Posted December 9, 2014 | 9:08 AM

Talk about a big blowout!

For the first time ever, a galaxy has been observed blasting out cold, dense gas in vast quantities and at mind-boggling speed. This "galactic molecular outflow" from Galaxy SDSS J0905+57 has been clocked at speeds of up to 2 million miles per...

Read Post

World's Biggest Telescope Gets Long-Awaited Green Light

(24) Comments | Posted December 8, 2014 | 9:09 AM

Four centuries have passed since the invention of the telescope, and in that time telescopes have gotten bigger and bigger--the better to peer into deep space.

Now the green light has been given for construction to begin on what is projected to be the world's biggest telescope,...

Read Post

James Watson's Nobel Prize Fetches Record Sum At Auction

(101) Comments | Posted December 5, 2014 | 1:14 PM

How much is a Nobel prize worth?

If you're James Watson, who shared a 1962 Nobel for his role in the discovery of the structure of DNA, it's worth about $4.76 million. That's how much his 23-carat gold medal fetched at auction in New York...

Read Post

Strange Spiral Galaxy Stumps Astronomers

(83) Comments | Posted December 4, 2014 | 1:34 PM

Spiral galaxies like our Milky Way (a barred spiral galaxy) are nothing special--in fact, they're the most common type of galaxy. But astronomers are buzzing about the recent discovery of a very unusual spiral galaxy that sports big jets of subatomic particles that stream outward at...

Read Post

Traces Of Carbon In Mars Meteorite Stir Debate About Life On Red Planet

(21) Comments | Posted December 3, 2014 | 10:27 AM

An international team of researchers say they've found evidence of biological activity inside a meteorite that fell to Earth from Mars three years ago--in other words, possible evidence that there was once life on the red planet.

But other scientists aren't convinced.

The meteorite in question is the...

Read Post

Alan Turing's Biographer On The Truth About The Troubled Genius And His Tragic Death

(43) Comments | Posted December 1, 2014 | 8:21 AM

Sixty years after his tragic death, the brilliant English mathematician Alan Turing (1912-1954) has come back to life, if only virtually, in the new movie The Imitation Game.

The movie spotlights Turing's work as a codebreaker during World War II. That's a logical choice given...

Read Post

Family Fights May Have A Surprising Upside For Children

(3) Comments | Posted November 30, 2014 | 9:16 AM

There's nothing fun about a nasty family argument, especially when everyone has gathered for Thanksgiving or some other festive event. And research has linked relationship conflict to anger, depression, anxiety, and other psychological problems.

But a new study published Oct. 10 in the journal Human Communication Research...

Read Post

PHOTO. Europe, le satellite de Jupiter comme on ne l'avait jamais vu

(0) Comments | Posted November 26, 2014 | 11:03 AM

C'est sans doute l'image la plus extraordinaire que l'on ait jamais eue d'Europe. La NASA a récemment numérisé cette photo d'Europe, un des satellites de Jupiter composé de glace, obtenant ainsi une très haute définition de l'image.

Et contrairement à une image similaire publiée précédemment...

Read Post

핸드드라이어가 사실은 박테리아를 내뿜는다는 연구결과가 나왔다

(0) Comments | Posted November 25, 2014 | 11:10 AM

슈퍼에 가면 종이봉투와 비닐봉지 중에 하나를 선택한다. 공중 화장실에서는 핸드타월과 핸드드라이어 중에 하나를 선택한다. 그런데 핸드드라이어보다 종이로 만든 핸드타월을 이용하는 것이 더 위생적이라는 또 하나의 연구가 영국에서 발표되었다.


이 연구에 따르면 핸드드라이어가 손의 수분을 제거하는 과정에서 기계 앞에 서 있는 사람과 그 부근에 박테리아를 뿜어낸다는 것이다.

...
Read Post

목성의 달 '유로파'의 놀랍도록 아름다운 사진이 공개됐다

(0) Comments | Posted November 24, 2014 | 8:32 PM

이것은 아마도 유로파를 찍은 가장 놀라운 사진일 것이다.


나사가 목성의 얼어붙은 달 '유로파'의 디지털로 매만진 새로운 사진을 공개했다. 유로파의 사진은 이전에도 공개된 적 있으나 이토록 선명한 사진은 거의 처음이라고 할 수 있다.


europa


갈라진 표면에 보이는 다양한 색채를...

Read Post

Stunning New Photo Of Europa Shows Jupiter's Icy Moon Just As The Human Eye Would See It

(54) Comments | Posted November 24, 2014 | 10:42 AM

It's the most extraordinary image ever of Europa.

NASA's newly "remastered" photo of Jupiter's icy moon (below) shows the satellite's geology in stunning, high-definition detail. And unlike a similar image released previously--in which the colors were artificially enhanced--the new photo shows Europa pretty much as...

Read Post

This Hand Dryer Study Will Have You Saying 'Ewww'

(83) Comments | Posted November 21, 2014 | 12:31 PM

In the supermarket, it's paper or plastic. In many public restrooms, it's paper towels or electric hand dryers--and a new study from England adds to a body of research suggesting that paper towels may be the healthier choice.

The study shows that as they remove moisture from...

Read Post

유성은 끝없이 지구에 떨어지고 있다. 이 지도가 증거다(사진)

(0) Comments | Posted November 19, 2014 | 10:12 PM

만약 당신이 소행성 충돌로 인한 지구의 종말을 걱정하는 사람이라면, '지구 근접 지역 프로그램(Near Earth Object Program)'의 일부로 나사가 공개한 새로운 지도가 전혀 위안이 안 될 것이다.


이 지도에 따르면 1994년에서 2013년 사이에만 자그마치 556개의 운석이 지구로 떨어지면서 볼라이드(bolides)라는 불덩이로 변했다. 즉, 유성은 '끊임없이' 떨어지고 있다. 나사가 이번...

Read Post