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The innermost planets straddle nighttime, with Mercury in the evening and the greatest western elongation of Venus in the ...
The TNO, which are described as minor planets that orbit the sun at a greater distance than Neptune, were found on the edge ...
Scientists have recently spotted a huge object far away in the cold outer reaches of our solar system. This ...
Scientists have identified an object about 435 miles (700 km) wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting it as it travels on a highly ...