Mercury orbits quickly around the Sun and scientists seeking to understand its mysteries have quickly identified a spacecraft capable of reaching it within sufficient timeframe. Slowing a spacecraft with flybys may be straightforward, but getting it to Mercury’s speed requires more complicated methods. Here’s how scientists plan to achieve their goal. Mariner 10 Chen-Wan Yen […]
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The Sun’s gravity holds together our Solar System, keeping planets, asteroids, meteoroids, as well as microscopic debris in orbit around it. At its core lies nuclear fusion processes which turn hydrogen into helium; all this heat makes up our star. This video from BBC Planet Earth series, hosted by David Attenborough. Volume Comparing planet sizes
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Since 1610, when scientists first made telescopic observations of Mars through telescopes, scientists have been mapping and studying it. Recently, three missions – China’s Tianwen-1 probe, United Arab Emirates Hope probe and NASA Perseverance rover – have used Mars’ 26 month orbital period to gather new information. Orbiters have provided more clarity, disproving theories about
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The NRDC app allows you to check sushi for mercury levels and other contaminants, as well as identify safe fish options to consume during pregnancy. Mercury can pass from mother to fetus during gestation or through breast milk and cause neurodevelopmental issues in young children, making it important to limit high mercury fish and increase
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Naming horses can be an overwhelming task. We have some helpful suggestions to make finding the perfect name easier! DreamWorks artists scoured real-life mustangs in search of inspiration for Spirit, an animated character they had created. Kiger quickly won hearts for both his beauty and strength. Isolde Isolde is an alluring Celtic name that symbolizes
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In contrast to earlier amphitheatres which dug into hillsides for support, the Colosseum was freestanding. Comprised of three stories surrounding an arena and eighty arches on each story; its bottom floor featured Doric and Ionic columns while its second-floor floors had Corinthian ones for additional support. Builders created the Colosseum on top of what had
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Many people eat fish as part of a healthy diet, but certain varieties contain high levels of mercury, which may be dangerous for developing fetuses and young children. Good news is that most popular fish species contain low amounts of mercury and pose little threat to most individuals. According to FDA recommendations, pregnant women should
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Mercury released into the air from coal-fired power plants, burning household waste or mining ore deposits can reach soil and water resources where bacterial processes may transform it into organic mercury-methylmercury forms. Methylmercury travels up the food chain, poisoning fish and wildlife that humans then ingest as well as finding its way into our drinking
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Spacecraft that are no longer needed for planetary exploration can either be reused for another mission, or returned back towards Earth in an effort to burn up on their descent and avoid spreading debris into space. It is an effective way of disposing of dead satellites without sending debris hurtling off into orbit. As it
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