Virtually every galaxy bigger than our Milky Way has a supermassive black hole at its center. These supermassive black holes can weigh tens of millions of times more than our sun.
How do black holes grow so gigantic? And why are supermassive black holes at the heart of so many galaxies? A citizen science project called Spiral Graph hopes you’ll help astronomers in their quest to answer these questions.
Take Part: Join the Spiral Graph project by visiting SciStarter.org.
