of "Lithograph: eXtreme Deep Field"
Lithograph: eXtreme Deep Field (PDF)
(4.4MB; Adobe Reader required)
This image from the Hubble Space Telescope shows the eXtreme Deep Field, a portion of the HUDF that was observed over 10 years in visible and near-infrared light. Astronomers combined nearly 3,000 separate observations to make this image. The image shows galaxies in different stages of evolution. In vibrant contrast to the image's rich harvest of classic spiral and elliptical galaxies, there is a zoo of oddball galaxies littering the field. Some look like toothpicks; others like links on a bracelet. A few appear to be interacting. The information contained in the text can be used to introduce the idea that galaxies change over time. The lithograph package includes an inquiry-based classroom activity.
Format(s) available: PDF
Grades: 10-12, but the material can be adapted for use in other grades at the teacher's discretion
How to use it in the classroom
Teachers can use Lithograph: eXtreme Deep Field as:
An example of the evolution of galaxies. Use the inquiry-based classroom activity called "In Search of … Galaxy Evolution" that is included with the PDF lithograph.
An engagement tool in an inquiry-based lesson. Have students study the eXtreme Deep Field image on the front of the lithograph. Ask them to write down three to five questions about the image. When the students are finished, their questions can be used in a variety of ways:
A content reading tool. Have students read the back of the lithograph and then write a quiz for the class.
HubbleSite press release: "Hubble Goes to the eXtreme to Assemble Farthest Ever View of the Universe"
HubbleSite press release: "Hubble's Deepest View Ever of the Universe Unveils Earliest Galaxies"
HubbleSite press release: "Hubble Approaches the Final Frontier: The Dawn of Galaxies"
See the Galaxies section on the "Teaching tools" page.