Artist's concept of Kepler 444. It is currently the oldest known planetary system in our galaxy. All five planets are smaller th
Artist's concept of Kepler 444. It is currently the oldest known planetary system in our galaxy. All five planets are smaller than Earth.
Size: 5220px × 3480px
Photo credit: © Marc Ward/Stocktrek Images / Alamy / Afripics
License: Royalty Free
Model Released: No
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