Walt Disney Productions’ Pluto’s Party (1952) is a classic animated short film that follows the hilariously chaotic events during Pluto’s birthday party, attended by Mickey’s playful nephews. Here’s ...

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CAMBRIDGE — In a hushed auditorium at the Harvard-Smithsonian Center for Astrophysics, astronomy fanatics crowded, waiting patiently and straining to hear word of a “data chirp” from a live NASA ...

It's been 18 years since Clyde Tombaugh, Pluto's discoverer, passed away — but on Wednesday the late astronomer got a birthday present that would have made him beam with joy: the closest close-ups ...