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.
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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
>> The Earth spins at 1,000 mph(1,600 kph), but it travels through space at an incredible 67,000 mph. >> It takes 8 minutes 17 seconds for light to travel from the Sun¡¯s surface to the Earth.
Last Sunday, three Chinese astronauts returned back to Earth safely after their first successful spacewalk. They spent 68 hours in space on board the Shenzhou VII spacecraft. Through its first spacewalk mission, China showed off its advanced technology in
Recently, German biologists have discovered a new species of ant. They believe it is the oldest ant on Earth. The ant lived on the planet around 120 million years ago. Researchers from Karlsruhe¡¯s Natural History Museum found the 3-millimeter-long insect
The Earth is full of living creatures. But when did ¡°life¡± first appear and how did it happen? Many scientists believe that the true age of the Earth is about 4.6 billion years old. They believe the Earth was formed at about the same time as the rest of
Can a candle burn in a spaceship, where everything is weightless? Well, NASA astronauts tried it out in a space shuttle. They found out that candles can burn in outer space! But they burn more slowly than on Earth.
So far, many countries have sent their astronauts into space. The first human in space was the Russian astronaut Yuri Gagarin. In April this year, Korea also sent its first astronaut Yi So-yeon into space. She became the 49th female astronaut in the world. But do you know what the first animal in space was?
Everyone gets hiccups sometimes. But have you ever wondered where these funny sounds come from? Your hiccups start in your diaphragm, a dome-shaped muscle at the bottom of your chest.
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