The planetary society says that if all goes according to the plan, the collision will push the moonlet slightly closer to Didymous and shorten its orbit around the asteroid by a few minutes.
Experts at Analytical Graphics, an American software company, believe a Russian satellite recently gave birth so to speak to a smaller satellite and then that satellite had a baby of its own.
Others are trying to catch it with a massive fishing net and in August, a company called Astroscale successfully tested capturing a small satellite with a magnetic arm.
I mean, if this little moon sitting out there in his hostile environment of Jupiter can have life form on it, that means that probably tell us that, that life is almost everywhere.
Then a comparatively low-speed collision at around 2.4 kilometres a second would mean that much more material from the moonlet was deposited on the lunar surface than was blasted off by the impact.
Setting aside the tiny problem that the US could barely launch satellites without blowing them up, CORONA project scientists also had to figure out how to make a camera work in space.