The number of active space-based citizen science projects is always changing. Please check back for updates and new listings.
This page offers a list of citizen science projects using data in the Mikulski Archive for Space Telescopes (MAST).
With your help, Planet Hunters is looking for planets around other stars.
Find new planets by looking at how the brightness of a star changes over time.
Such changes observed by NASA's Kepler spacecraft can indicate the presence of transiting planets.
How do galaxies form?
NASA's Hubble Space Telescope archive includes hundreds of thousands of galaxy images.
To understand how these galaxies, and our own, formed we need your help to classify them according to their shapes — a task at which your brain is better than even the most advanced computer.
We're on a collision course with the Andromeda Galaxy.
Help researchers understand the awesomeness of the Andromeda Galaxy, because one day we'll be in it.
Using survey data from the Hubble Space Telescope we're hunting for star clusters in Andromeda and hidden galaxies that lie behind.
Galaxy Zoo: Mergers How do galaxies merge? Select simulations that look similar to the targeted merger. Take your best matches, and improve them by tuning your simulations. Find the best of the best from your set of possible matches.
Galaxy Zoo: Supernovae Search for exploding stars! Help us catch exploding stars, known as supernovae. Data is provided by an automated survey at the world-famous Palomar Observatory in California, and astronomers are ready to follow up on your best candidates at telescopes around the world.
