(CNN) — While searching for the mysterious Planet X that some astronomers believe lurks on the edge of our solar system, researchers instead found an extremely distant object they dubbed "the Goblin." ...
The original Planet 9 puzzle: strange orbits and a bold claim The modern Planet 9 saga began when a cluster of small, icy bodies far beyond Neptune appeared to be moving in lockstep, as if shepherded ...
Fast-moving objects like interstellar comet 3I/ATLAS may be planet-forming seeds, potentially helping to solve an old Solar System mystery. On July 1, 2025, astronomers spotted an object moving ...
If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth. When you purchase through links on our site, we may earn an affiliate ...
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