How many rocket scientists does it take to make a successful space probe? We’ll let you know when it happens.

I don’t understand how these guys can keep making mistakes like this. I can understand the Mars probe–they didn’t know what the surface was like, so they messed up the landing. But this last one was lost when it shot itself out into space. Something they’ve been doing for fifty years. Even if they’re still using slide rules they should have done it right. I just don’t get it.