+139b is an elusive designation, often suggesting a celestial body or quantum state far beyond current reach. Its existence is typically inferred through indirect observation, hinting at untold possibilities within [deep space](/wiki/Deep_Space) or the fabric of [reality](/wiki/Reality) itself.
+## See also
+- [Observation](/wiki/Observation)
+- [Theoretical Physics](/wiki/Theoretical_Physics)
+- [Cosmology](/wiki/Cosmology)
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