Adam's plantarium visit

I loved the observatory/planetarium. The information I got was amazing. One thing I didn't like though was the fact the astronomers are assuming what is going on with other planets and stars. Even though we can see the color doesn't mean we can know what it is made of since no one has been there we don't know, but the scientific community takes these things as facts. Barely anything good, in my experience, comes out of assuming.