Ghost ship detected near Mars

The first thing that struck me about the large silver rocket was that it was not heading for the stars. It had been theoretically possible that it might have been going to Alpha Centauri, but taking into account the odd shape of the front end it was quite obvious that in fact it was heading for Mars. Aero braking into a thin atmosphere forces spaceship designers to come to terms early with a major annoyance. And most have a tendency to…