  I present the two-loop QCD corrections to the production of a massive
quark-anti-quark pair in the massless quark-anti-quark annihilation channel.
The result is obtained as a combination of a deep expansion in the mass around
the high energy limit and of a numerical integration of a system of
differential equations. The primary application of the outcome and developed
methods is top quark pair production at the Large Hadron Collider.
