Philae was a mechanical failure that had little to do with the shape of the comet - its harpoons failed to fire.<p>Nukes might be a solution of last resort for a late detection, but with enough early warning there are far more gradual and precise ways to do it (and they don&#x27;t sandblast the planet, either).<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Gravity_tractor" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Gravity_tractor</a>