Did you know your students can contribute directly to science? Thanks to crowdsourcing, your students can now look at real data from Hubble Space Telescope. They then help scientist classify the shape of the galaxies. This way they can process a large amount of data in a short time.
Your students will enjoy the challenge of looking at raw data and contributing to publishable science.
You will need to create a account in http://www.galaxyzoo.org/.