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Meteor shower. A meteor shower is a celestial event in which a number of meteors are observed to radiate, or originate, from one point in the night sky. These meteors are caused by streams of cosmic debris called meteoroids entering Earth's atmosphere at extremely high speeds on parallel trajectories.
Iceland is usually included in Europe because it is over twice as close to mainland Europe as mainland North America. There is ongoing debate on where the geographical centre of Europe falls. This video was taken by the crew of Expedition 30 on board the ISS on a pass over Europe. The two videos were shot simultaneously using different cameras ...
Earth Hour is a worldwide movement organized by the World Wildlife Fund (WWF). The event is held annually, encouraging the individuals, communities, and businesses to give an hour for Earth, and additionally marked by landmarks and businesses switching off non-essential electric lights, for one hour from 8:30 to 9:30 p.m., usually on the last Saturday of March, as a symbol of commitment to the ...
Live Earth was a one-off event developed to combat climate change.The first series of benefit concerts were held on July 7, 2007. The concerts brought together more than 150 musical acts in twelve locations around the world which were broadcast to a mass global audience through televisions, radio, and streamed via the Internet.
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The Moon is tidally locked to Earth; it rotates so that one side of the Moon always faces the Earth. The side of the Moon facing away from Earth is called the far side of the Moon and the side facing Earth is called the near side of the Moon. During lunar night on the near side, Earth is 50 times brighter than a full moon.
Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east. Europe shares the landmass of Eurasia with Asia, and of Afro-Eurasia with both Asia and Africa.
What time can we see the Northern Lights? The National Oceanic and Atmospheric Administration's (NOAA) Space Weather Prediction Center says that the optimal viewing time is between 10 p.m. and 2 a ...