Website
California Institute of Technology

Spitzer Science Center: Image of an Infrared Echo

For Students 9th - 10th
The Infrared Echo, featured this space telescope image of the supernova remnant of Cassiopeia A, is created when a star explodes. A detailed textual overview explains various specifics of the picture.
Website
California Institute of Technology

Spitzer Science Center: Dead Star's Layers

For Students 9th - 10th
Following the title, "Lighting up a Dead Star's Layers" this site examines an image containing the exploded remains of a star known as Cassiopeia A. The information, while brief, directly addresses the image provided.
Website
California Institute of Technology

Spitzer Science Center: Dead Star Rumbles

For Students 9th - 10th
This image, titled "Dead Star Rumbles" features a medium-sized image of the remnants of Cassiopeia A and its surrounding infrared echo. The text under the image details various specifics about the picture.
Website
NASA

Nasa: Cassiopeia A

For Students 9th - 10th
This image, titled "Cassiopeia A: Death Becomes Her" features the supernova remnants of Cassiopeia A. The text under the image details various specifics about the picture.