Tesla

 is a Black Hole badge. To earn it, user has to collect 10,000,000 energy points by watching videos, practicing exercises, completing programming challenges, or finding some hack...

As of now, there are about 30 verified users that have achieved this honorable badge on Khan Academy.

Similar badge(s)

 * Ten to the Fourth
 * Ten to the Fifth
 * Five Times Ten to the Fifth
 * Millionaire

Trivia

 * Tesla is currently the only Black Hole badge which can be obtained by normal members.
 * The badge is named after Nikola Tesla - the famous Serbian American inventor who is best known for his contributions to the design of the modern alternating current (AC) electricity supply system.