Satellites have been watching us for 40 years. Here’s what their images reveal. Since 1972, a posse of satellites has
Read MoreIn the eastern part of the city, sodium vapor lamps with a yellower color are used. In the western part
Read MoreA solar eclipse happens when a part of the Earth is covered in a shadow thrown by the Moon, which entirely or partly obstructs light. Each year happens there are 2-5 solar eclipses of different types.
Read MoreAlmost 500 tonnes of meteoritic wreckage fall to the planet each day, much of it as little cosmic dust and micrometeorites that sink into the ocean. About 500 meteorites of moderate size would strike our planet’s surface each year, of which 150 would fall on the landmass, and less than ten would be found.
Read MoreApproximately 80 percent of people live in an area that’s immersed in artificial light at nighttime. In Western Europe and the United States, that number shoots up to more than 90%. Light pollution affects nature and humans, changing the plants’ phenology, the hunting habits of nightly animals, and human rest cycles.
Read MoreSolar System appeared 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast bulk of the Solare system’s mass is in the Sun, with most of the remaining mass contained in Jupiter. This planet and Saturn are gas giants, mainly formed of hydrogen and helium; Uranus and Neptune are ice giants. The four smaller innermost planets, Mercury, Venus, Earth, and Mars, are terrestrial, being principally formed of rock and metal.
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