The composite image shows the galaxy cluster known as Abell 85, which is located about 740 million light years from Earth.

For the first time, a multiwavelength three-dimensional (3-D) reconstruction of a supernova remnant has been created.

This image shows how complex a star's afterlife can be.

M84 is a massive elliptical galaxy located about 55 million light years from Earth in the Virgo Cluster.

M87 is a giant elliptical galaxy. At a distance of about 60 million light-years from Earth, M87 is the largest galaxy in the Virgo cluster of some 2,000 galaxies.

Abell 1689 is a massive cluster of galaxies located about 2.3 billion light-years away.

In 1995 or 1996 a supernova exploded in a nearby galaxy, but no one on Earth knew it at the time.

RCW 108 is a region where stars are actively forming about 4,000 light-years from Earth.

The giant galaxy, Perseus A, which is also known as NGC 1275, is a well-known source of strong radio radiation.

This composite of data from NASA's Chandra X-ray Observatory and the Hubble Space Telescope is another look for NGC 6543, better known as the Cat's Eye nebula.