Galaxy Zoo is a citizen science project that uses volunteers to classify galaxies from the Sloan Digitial Sky Survey as spiral or elliptical. Now the Galaxy Zoo 2 catalogue has gone public, with even more detailed classifications of galaxies, including bars, bulges, spiral arms, and round and squashed ellipticals.
Ever wondered what it’s like to merge galaxies? The authors of the Galaxy Zoo project have created a way that you can find out… and do science while you’re at it!
The discovery of a population of red spiral galaxies has caused astronomers to questions the relation between galaxy color and morphology: a closer look at their star formation rates reveals a clearer picture.
With the help of citizen science through Galaxy Zoo, this paper’s authors collect a large sample of dusty elliptical galaxies, which allows them to investigate the connection between gas-rich mergers, starbursts, and AGN activity.