Most galaxies come in two breeds, spiral and elliptical (pictured above). The Galaxy Zoo team discovered a new class of galaxies that are being called green peas (below). “These are among the most extremely active star-forming galaxies we’ve ever found,” said Carolin Cardamone, an astronomy graduate student at Yale and lead author of the paper, to be published in an upcoming issue of the Monthly Notices of the Royal Astronomical Society. This is simply amazing because these galaxies are 100 times less massive than our own Milky Way, and forming stars 10 times faster.
All images are courtesy Sloan Digital Sky Survey
The Yale press release can be found here