Photo: K. Jardine (Galaxy Map)

This is a map of a star, an OB-type star to be exact, and using the European Space Agency’s GAIA data, scientists have created the first-ever star density map. This 3D model shows the structure of these OB-type stars, the most massive, hottest and brightest stars in our galaxy. OB stars burn so hot that their lives are relatively short, with a lifespan of only a few tens of millions of years, and scientists collected data on more than 400,000 of them in order to create this model.