Orbiter is a free Space Flight Simulator for Windows. It is not a web app, but must be downloaded and installed on your computer.

With Orbiter, you can launch and fly the space shuttle. It launches from Kennedy Space Center and then you fly it to rendezvous with the International Space Stations. You can also fly Mercury, Gemini, Apollo, Vostok and other spacecraft, including your own design or designs others have made.

The simulator is very realistic and allows you to fly spacecraft, design your own craft, plan interplanetary missions, and learn about space flight and orbital mechanics in a fun way.

This is a great resource for science classes, especially Physical Science, Astronomy, and Physics.

Here are some screen shots from Orbiter:


     

I plan on using this with my Physics classes as part of their end-of-the year rockets project.

CollectSPACE has some very cool pictures of the Space Shuttle Atlantis available. These pictures are very interesting and can be used when doing a lesson on space, engineering, or science. Spaceflight is a great way to get students excited about STEM subjects.

Space Shuttle Atlantis flew the final shuttle mission for NASA. It will be displayed for the public at the Kennedy Space Center in Florida. The pictures of the inside are amazing!

Zooniverse is a very cool project I found out about today. Zooniverse is a collection of "citizen science projects" where citizens contribute to the research and content.

The projects are all about space science: Planet Hunters, Milky Way, Moon Zoo, Solar storms and more. The projects use publicly available information as resources and look for new things about the planets, solar system and more.

The projects are an excellent resource for inquiry based learning in both content and scientific process. There is an education site that has ideas for using Zooniverse in the classroom and there are education resources specifically for the Galaxy Zoo and Solar Stormwatch projects.

There is a huge amount of information and resources available here and they can be used across subjects and grades.