We check this website, now rivercityscience.org is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is rivercityscience Down Right Now? - NO! rivercityscience is up!
If you have problem with access to site rivercityscience, and domain rivercityscience.org is not avalible.
Clear browser cache and/or try other web browser
(Chrome, Firefox or Safari).