September 16, 2009--The Andromeda galaxy shines in shades of purple and blue in the highest-resolution ultraviolet picture yet taken of our closest galactic neighbor.
The composite image, created using NASA's Swift satellite, reveals a striking contrast between the galaxy's smooth central bulge--which is full of older, cooler stars--and the clusters of hot, young stars scattered across its spiral arms.
No hay comentarios:
Publicar un comentario