NASA’s Hubble Space Telescope has discovered a new moon orbiting the distant blue-green planet Neptune, the 14th known to be circling the giant planet.

The moon, designated S/2004 N 1, is estimated to be no more than 12 miles across, making it the smallest known moon in the Neptunian system. It is so small and dim that it is roughly …

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Do you know what today is? It’s the day on which Neptune has finally completed one full orbit of the sun, since its discovery in 1846. One orbit in just under 165 years.


This fascinating video (courtesy NASA, ESA, and G. Bacon and M. Estacion (STScI)) puts that one Neptunian orbit into an Earth timeline perspective

Neptune is a giant …

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