Interactions.org Newsdigest 2 April 2013

-- Detectors zero in on Earth's heat -- Cern begins LHC upgrade to boost dark matter search -- Cosmic Journey 13 Billion Years In The Making Seen By Plank -- Listen to the big bang - now in hi-fi! -- How the Large Hadron Collider is being repaired -- LHC upgrade to open up 'new realm of particle physics' -- Fermilab Budget Cut by $36 Million; No Staff Cuts Triggered, So Far -- Fermilab faces $36 million budget cut -- Mini Black Holes Easier To Create Than Thought, But Still No Threat To Earth, S...