Tesla

Tesla is a black hole badge and the hardest badge to achieve. To earn it, you need to have 10,000,000 energy points.

Because it needs energy points to earn, you don't get any energy points for this badge.

Till now, about 10 people have got this badge.

Their profiles are located here, here, here, here, here, here, here, here and here.

Name
This badge was named after Nikola Tesla - an inventor, electrical engineer, mechanical engineer, physicist, and futurist. He has also worked with Thomas Edison.