This object isn't supposed to be in our solar system

By Ashley Strickland, CNN

Updated 1305 GMT (2105 HKT) May 21, 2018

This image shows the vicinity of the Tucana II ultrafaint dwarf galaxy, captured by the SkyMapper telescope.
Photos: Wonders of the universe
This image shows the vicinity of the Tucana II ultrafaint dwarf galaxy, captured by the SkyMapper telescope.
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