Happy Satellite Collision Day! It is 10 years since Russia and Iridium got too close for comfort

Plus: Cygnus freighter to spray more sats across the heavens

As Elon Musk crowed over the performance of SpaceX's Raptor engine and Northrop Grumman's Cygnus departed the International Space Station (ISS), debris watchers were ruing the 10th anniversary of the first accidental hypervelocity satellite collision."