This feels like one of the most "in your face" scams I've seen in awhile. The first thing I wanted to find out when I visited the site is where they got their funding - of course that section is absent from the site. The second thing I looked up is how they expected to get there and how they were solving the engineering challenges involved. On the technology page I found a dumbed down list of the different modules in…
For that, they made an elaborate web page, did tons of PR outreach (not just on the internet; they're Dutch, and have been in Dutch traditional media a fair lot). They even got a reputable university on board (Universiteit Twente).
To scam people out of $80k?
No. They actually believe that there's a fair chance that they'll pull this off. Whether that's a sensible belief is another thing entirely, but they believe it.
You do know that they plan to finance the trip by selling TV show rights for it? Even if it miserably fails, it's great television.