Earth Flees Giant Planets at the Equinox, Ganymede Goes Missing, and the Awesome Andromeda Galaxy!
The beautiful Triangulum Galaxy, also known as Messier 33, dim because it is oriented nearly face-on to Earth, spans 1.5 full moon diameters in the sky. Some people have been able to see it with unaided eyes. At 2.75 million light-years from Earth – that’s the farthest object a human eye can see! This image…
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