2017-04-14 所属栏目:科学美国人

You’re strolling down the street or maybe hauling that load of laundry down a flight of stairs when all of a sudden. [sound fx] Your laces come undone. If you’ve ever p

2017-04-13 所属栏目:科学美国人

“Parkinson’s is the second-most common neurodegenerative disease.”Neuroscientist Todd Sherer, CEO of the Michael J. Fox Foundation for Parkinson's Research. Fox,

2017-04-12 所属栏目:科学美国人

Picture a prehistoric human encampment, in a cave. What do you see? Maybe some animal hides, bones from last night's dinner, a small fire? But what you might not picture are the o

2017-04-07 所属栏目:科学美国人

In 2013, a rare September storm swept across the plains of Colorado. When it hit the Rockies, it dropped more than a foot of rain in places like Boulder—as much as the city s

2017-04-06 所属栏目:科学美国人

By now, you may have heard about a study that came out a couple of weeks ago about spiders. The study got a lot of attention because coverage of the research often focused on the i

2017-04-05 所属栏目:科学美国人

We tend to see house cats as aloof and independent, mostly preferring to engage in their own kitty business. But that assumption may be littered with error. Because a new study fin

2017-03-30 所属栏目:科学美国人

Astronomers have catalogued more than 3,500 exoplanets since the first one was found in 1988.

“Part of the revelation and the revolution that’s going on is that actual

2017-03-27 所属栏目:科学美国人

“There are a lot of misconceptions about what zoos and aquariums are today in the 21st century.”Jim Breheny, Director of the Bronx Zoo—and Executive Vice Presiden

2017-03-27 所属栏目:科学美国人

The sun spews out ultraviolet radiation—that's why you put on sunscreen. But the sun isn't the only UV-producing celestial body. "Stars and supermassive black holes produce

2017-03-23 所属栏目:科学美国人

Don’t mess with a monkey. Because if you do, he’s might take revenge—on your family and friends. That’s according to a study of Japanese macaques, which sho

2017-03-22 所属栏目:科学美国人

Isaac Newton said, “I can calculate the motion of heavenly bodies, but not the madness of people.” He meant that while people can be unpredictable, the planets are just

2017-03-21 所属栏目:科学美国人

“We focus on what is called recurrent obesity or yo-yo obesity, which is a feature which affects close to 80 percent of all overweight individuals worldwide.”

Eran Eli

2017-03-20 所属栏目:科学美国人

Back in 2011 member countries of the World Health Organization, the WHO, came up with a plan to cut mortality from noncommunicable diseases 25 percent by the year 2025. The program

2017-03-20 所属栏目:科学美国人

Honeybees are the charismatic microfauna of the pollination world. But flies, bumblebees, butterflies and moths—they all pollinate, too. With varying degrees of success. The

2017-03-17 所属栏目:科学美国人

As climate change dials up global temperatures, one effect is an earlier flower bloom. But it turns out there's another factor that also means faster flowering: a loss in biodiver

2017-03-16 所属栏目:科学美国人

“Asthma is a very prevalent disease in our society now. It wasn’t so 50 years ago. And we now realize that the very early life microbes seem to have set you up or not f

2017-03-15 所属栏目:科学美国人

The Earth is studded with telescopes, listening for electromagnetic radiation from the great beyond. And a decade ago, astronomers stumbled upon a mysterious signal: a powerful pul

2017-03-13 所属栏目:科学美国人

“And this mission would be NASA’s first mission that is directly tasked with searching for signs of life on another world since the Viking Spacecraft were given that ta

2017-03-13 所属栏目:科学美国人

The paleo diet—it's pretty trendy. Eat like a caveman, no dairy, grains, sugar and so on. But what you probably won't find on many paleo plates today?

"Pine nuts and moss

2017-03-09 所属栏目:科学美国人

“We have increasing doubts about this evidence, but we don’t feel yet that we have the scientific knowledge and basis to exclude it altogether.”Jed Rakoff, United

2017-03-08 所属栏目:科学美国人

In 2016 the Laser Interferometer Gravitational-Wave Observatory, LIGO, made the first accepted detection of gravitational waves.

“So any time you move a mass it produces a g

2017-03-07 所属栏目:科学美国人

Back in January, one of California's oldest and most iconic residents keeled over: the Pioneer Cabin tree, a giant sequoia in Calaveras Big Trees State Park…so big you used

2017-03-06 所属栏目:科学美国人

In their heyday, woolly mammoths blanketed the Siberian steppe, Alaska and large parts of North America. But by 10,000 years ago, warming climates had turned many of the grasslands

2017-03-03 所属栏目:科学美国人

Over millions of years, penguins have evolved a keen sense of where to find food. Once they’re old enough, they set off from the shores on which they hatched for the first ti

2017-03-02 所属栏目:科学美国人

Medical marijuana is now available in 28 states. But a big obstacle to research on marijuana as medicine is that it’s listed by the federal government on what’s called