A planet’s opposition occurs when Earth passes between it and the Sun. As a consequence of that geometry, Neptune’s disk will appear to be 100% illuminated as seen from Earth. It will be 180º ...
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NASA scientists discover new planet where a year only lasts 21 hoursAstronomers have found a Neptune-sized planet in a scorching close orbit to its star, marking only the fourth discovery of its kind. NASA's team has identified an exoplanet using the space agency ...
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