First, let’s compare the orbital characteristics of Pluto with those of other planets. Pluto has an orbital eccentricity (the degree to which its orbit deviates from a perfect circle) of 0.25, while ...
Pluto's unusual eccentricity and tilt is likely due to its interactions with neighboring Neptune and other giant planets, ...
Normally when a medium-size star dies, it blasts away the bulk of material in its system. The Hubble discovery was surprising ...
NASA says its Hubble Space Telescope has detected a white dwarf star that consumed fragments of a Pluto-like object. Space ...
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