I had a subscription to this website for three or four years when they had a grant for the subscription. It is a very cool website, but it is a bit expensive. There are many activities and lessons. The big lesson is an interactive space launch that students each have scripted roles. There is a nice video that tells about the site and lift off of the space shuttle. I used to have my students do an experiment with soy bean and wheat grown in three different soils. One was called zeolite that was developed to grow plants on the space station for food. Data collection was done online and could be compared with schools across the country my students always enjoyed doing this activity they even told me so.