Sky & Telescope |
Solar System Featured on New US Stamps
Sky & Telescope Back in 1991, two years after Voyager 2 flew past Neptune, the USPS issued a set of nine stamps, one for each planet and a NASA spacecraft that had explored it. No one had yet seen Pluto up close — the New Horizons mission concept wouldn't come … Postal Service Releases Preview of 2016 Stamps Get Excited for This Year's Space-Themed Stamps The US Post Office is releasing new Pluto, planet, and 'Star Trek' stamps this … |
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