Rosetta — Europe’s comet-chasing spacecraft — is in the middle of a three-day series of rocket firings that are setting the geometry for its rendezvous with comet 67/P Churyumov-Gerasimenko (which I have heard called “Cherry Gerry,” for short). These aren’t just any deep space maneuvers; between last night and January 23, Rosetta will have fired its rockets for more than seventeen hours. Seventeen hours! That’s a lot!!Click to enlarge ….
- Radar topographic view of a volcano
- A Business Case for Asteroid Mining