The universe began with a vast explosion that ... These explosions, called supernovae, are important to the evolution of galaxies because they distribute all the common elements such as oxygen ...

Astronomers have identified a quasar that may help explain how the universe’s “dark ages” finally ended. Astronomers have ...

It's been a long, strange trip for this universe we call home. Follow its development and take a peek at what's ahead with the Mysteries of Deep Space interactive timeline. Simply click on the ...