2017-02-20 Eyes in the Sky Map Amazon on the Ground
Looking at a rainforest from high in the sky, you might think all the trees look about the same. But they are not. Take, for example, the Amazon rainforest in…
2017-02-13 How Does Long-Term Space Travel Affect Humans?
Astronaut Scott Kelly launched into space on a one-year mission to the International Space Station (ISS) in 2015. He was weightless for 340 days. His identical twin brother, retired astronaut…
2017-02-06 New Technology Helps Move Hearts
Heart transplant surgery is a common medical treatment in the United States. Some doctors are skilled at removing the heart from someone who has just died, and then preparing it…
2017-01-30 Israel Builds World’s Largest Solar Tower
Israel, a sunny country along the Mediterranean Sea, is a perfect place for solar power. Even so, solar power supplies only a small percentage of the country’s energy needs. But…
2017-01-23 Low Coal Prices Mean Heavy Smog in China
Smog is a health concern in many areas, such as China’s capital. Beijing started the New Year with heavy smog hanging over the city. The skies seemed darker than usual,…
2017-01-09 Researchers Testing New Cancer Treatment
Liver cancer is the sixth most common cancer in the world, and now researchers are developing new forms of treatment. If tests show you have liver cancer, there are several…
2017-01-02 China Space Plan to Develop “Strength and Size”
China wants to develop “strength and size” in its space program, a China National Space Administration official said last week. In the next five years, the country plans to speed…
2016-12-26 Scientists Looking for Life on Mars
Pictures of the planet Mars show a rocky, lifeless scene. It is hard to imagine plants or animals could ever exist there. But scientists continue to look for evidence. NASA,…
2016-12-19 Giraffes Facing ‘Silent Disappearance’ in Africa, Report Says
The number of giraffes has dropped by as much as 40 percent since the 1980s, says a new report on endangered species. The Red List is a study of threatened…
2016-12-12 NASA Developing Food Bars for Mars Flights
When astronauts go to the planet Mars years from now, they will need the right food to stay strong and healthy. At NASA, the American space agency, scientists are working…
2016-12-05 Supercharged Plants May Mean More Crop Production
One day, “supercharged plants” may help feed people around the world. Supercharged plants are ones that grow faster than normal plant life. Scientists can speed up the growth by modifying,…
2016-12-01 AIDS Vaccine Testing Taking Place in South Africa
Thursday is World AIDS Day. For almost 30 years, the United Nations has marked World AIDS Day on December 1. People often note the number of deaths from AIDS, short…
2016-11-28 Weather Predictions Expected to Improve with New U.S. Satellite
A new American weather satellite could save more lives by better predicting extreme weather conditions. The satellite was launched from Cape Canaveral, in the state of Florida, on November 19.…
2016-11-21 What do Spider Webs and Guitar Strings Have in Common?
Spider webs have something in common with guitar strings. The long, thin strings on a guitar can vibrate. They move back and forth, or from side to side.“Tony” Acosta plays…
2016-11-16 Scientists Fear Trump Victory Will Stop Global Warming Progress
When Donald Trump was a candidate for president, he criticized scientists who blamed pollution for rising temperatures on Earth’s surface. Trump rejected scientific documentation of climate change, calling it a…