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"And what is this newfound love for the ice giants?"

12 Feb 2019, 14:00 UTC
NASA, ESA, A. Simon (NASA Goddard Space Flight Center), and M.H. Wong and A. Hsu (University of California, Berkeley)

Uranus and Neptune are a long way away.

Think of it this way; Uranus is four times the diameter of Earth, yet so far away that even under the very best of circumstances it’s barely visible to the naked eye. Neptune is just a hair smaller than Uranus, but at half again farther away yet you need binoculars at least to spot it.

In real numbers Uranus is about 3 billion kilometers away, Neptune 4.5. That’s a lot of kilometers.

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