Thanks Alex, that's five minutes of my life wasted in watching the first video!
As soon as I hear a slick, folksy American voice and insinuation of a NASA cover-up, that's it for me! Stuff like this is demeaning of the rigour and dedication needed to advance cometary science - if he was doing the science I might at least listen, but he's just some doofer putting his own spin on stuff he's found on the web. The first bit was so full of flaws and deliberate misinformation that the rest wasn't worth watching, sorry.
And what's with the NASA cover-up? So does NASA do all of our solar system probes & astronomy science? Got it so sewn up they can say anything they like! Again, demeaning of all the thousands of hard-working people all over the
world who are gradually advancing our knowledge of the Solar System. Like all things astronomical, our understanding of comets is far from complete, but evolving rapidly as we get better & better data. It's an exciting field, but not helped at all by this kind of drivel!
Guys like this one never had a platform before the WWW, but unfortunately nowadays he's probably on the conservative side of the lunatic fringe, LOL!
Anway, there goes another five minutes!
Cheers -