A Simple Riddle

I am newly discovered,

Yet I am ancient.

The eternal cold is my abode.

My body?A mystery;

The path I travel is stranger still.

I am the lonesome child

That is with and without siblings.

To some my name means wealth,

To others it means death.

Before I became a famous outcast,

I was famous for an egregious theft.

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Check my "new"s section for the answer