BBC2mon
Sonic the Hedgehog gets his own Blue Peter Badge!
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 .
Yahoo9d
NASA captures XB-1’s supersonic shockwave as it breaks the sound barrier
An XB-1 aircraft’s shock waves created during a supersonic flight have been captured using specialized ground-based photography. January saw XB-1 make history as the first privately developed ...