Three observations over the meteor/alien craft story:
1. If it were a craft (aliens)....the route would have brought it near Earth.....not near Mars and then the sun. So I believe it's just a big chunk of rock.
2. The craft story? I think it only works if it'd been sent to do one single pass through our solar system. Automated vessel....just to collect data, and return.
3. If it does NOT emerge from the back-side of the sun...(November) just 'hiding' there? Then all bets are off, and its some alien craft lingering in a hiding position.