Methuselah

Methuselah or PSR B1620-26 b is a confirmed exoplanet.

Properties
Methuselah is an exoplanet orbiting a binary system consisting of a pulsar and white dwarf. It has gained great attention because based on data, it is approximately 12400 light years away in the constellation of Scorpius. It has gained great attention becauase it's suspected to be one of the oldest planets in existence, being an age of 12.7 to 13 billion years!