8. Planet Methuselah
PSR 1620-26 b is probably the oldest planet of the universe, old enough to defy the traditional astrophysical models. It is triple the age of Earth, and is thought to be just a billion years younger than the universe itself, when traditionally, it is believed that planets cannot be as old as the universe, because, 13.8 billion years ago, at the time of the big bang, the materials required for a planet to form were not there in the universe, then. Methuselah orbits a binary star comprising a white dwarf star and a pulsar, amongst the globular cluster of stars in the Scorpius constellation.
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