The top quark is the most massive, point-like, particle known to exist in
nature. It plays a major role both in the experimental and theoretical
frontiers. Experimentally, observation of top quark is challenging, its
signature is similar to that expected from new physics (NP) dynamics. The
recent top rediscovery, at the LHC, is marking the beginning of the hunt for
the unknown. Theoretically, top physics is possibly linked to electroweak
symmetry breaking and likely to be part of the solution to the fine-tuning
problem. We discuss theoretical aspects related to top jets, a new type of
objects, which might be crucial for NP discovery. We also present our recent
experimental results from the CDF, Tevatron experiment, regarding the first
observation of ultra massive jets.
