He is the blue hedgehog who can run at supersonic speeds and the leader of Team Sonic! Knuckles The second member of Team Sonic is Knuckles the red echidna, who is voiced by Idris Elba .

Boom Supersonic's XB-1 is the first civilian aircraft to achieve the feat since the British-French supersonic airliner, which was retired in 2003. The XB-1 broke the sound barrier for the first ...