re boom whoosh in article c ut z ctg zoo toronto edu henry zoo toronto edu henry spencer writes in article r ofinndku gap caltech edu palmer cco caltech edu david m palmer writes orbiting billboard i would just like to point out that it is much easier to place an object at orbital altitude than it is to place it with orbital velocity for a target km above the surface of earth you need a delta v of km s unfortunately if you launch this from the us or are a us citizen you will need a launch permit from the office of commercial space transportation and i think it may be difficult to get a permit for an antisatellite weapon well henry we are often reminded how canada is not a part of the united states yet you could have quite a commercial a sat er sky cleaning service going in a few years toronto skysweepers clear skies in hours or your money back discount rates available for astro researchers software engineering that s like military intelligence isn t it sysmgr cadlab eng umd edu
