Neutron stars are the ultra-dense cores left behind after a massive star reaches the end of its life and explodes.

Jets of high-energy particles are found throughout the Universe on large and small scales.

One of the most famous objects in the sky - the Cassiopeia A supernova remnant - is now on display like never before.

Astronomers have to be good at solving puzzles by piecing together clues and evidence.

In this picture, a galactic collision is taking place between the grand spiral galaxy and the tiny dwarf galaxy that you can see to its left.

This picture shows the very large, very distant and very gassy Coma Cluster.

The Chandra Data Archive plays a central role in the mission by enabling the astronomical community access to data collected by the observatory.

This spooky new image shows a massive star in its afterlife. You could say it's a 'ghost star'.

This object was first spotted in 1757, but today we are still discovering new details about it.

There is also seeding taking place on a much bigger stage - a cosmic one.