We went today and saw two exhibits: Dark Universe & The Power of Poison.
Dark Universe was a show in the planetarium ... wow, it was COOL! I don't actually think any of the information delivered was that interesting, but just watching a show in the planetarium was freaking cool (I've never gone before).
Then, we saw The Power of Poison.
I don't know what I was expecting, but it was really cool. They had poison animals, fairy tales, literature, food, a demonstration about a trial involving poison, a "pet detective" game to solve the clues about why a dog was dead, and then that's about the point that we sped through the end because I am NOT feeling well at all.
The point is, if you're in NYC and you go to the museum and see these exhibits -- go to them!