New NASA satellite data reveal the latest signs of global warming. According to NASA scientists, more than 2 trillion tons of land ice in Greenland, Antarctica, and Alaska have melted since 2003.
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The ozone layer is a layer of gas in the upper atmosphere. It protects humans and other living things from the harmful ultraviolet (UV) rays of the sun. The ozone layer was discovered by the French physicists Charles Fabry and Henri Buisson in 1913. In th
Last Tuesday, U.S. researchers discovered what appears to be the oldest imprint of a prehistoric insect. The imprint was found at a rocky outcrop near a large shopping center in Massachusetts.
Last week, American researchers said that Jupiter has a rocky core that is more than twice as large as previously thought. Scientists at the University of California, Berkeley in the U.S. found that Jupiter¡¯s core is an Earth-like rock that¡¯s 14 to 18 t
Last Tuesday, researchers in Australia said kangaroos are genetically similar to humans. They mapped the DNA of kangaroos for the first time and found that humans share most of their genes with kangaroos.
Have you ever wondered why some people look different than others? Most Koreans look alike. We have the same color hair, skin, and eyes
Space scientists have long known that the Earth and the sun must be connected. Now they are pretty sure that magnetic portals open up every 8 minutes to connect our planet with the sun. ¡°10 years ago, I was pretty sure the portals didn¡¯t exist, but now
Last Wednesday, NASA scientists said that Mercury was once alive with volcanoes. Mercury is only a little larger than the moon. It is considered the solar system¡¯s smallest planet, a third the size of the Earth.
Last year, the Intergovernmental Panel on Climate Change (IPCC) said that the evidence of global warming is very clear. The IPCC is the UN scientific panel studying climate change. According to the panel¡¯s recent report, human activities are
Today, X-rays are playing an important role in medical science and many other areas. They are a type of radiation that can go through many solid substances, allowing hidden objects such as bones and organs in the body to be photographed. X-rays are also c
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