of "Tales of … A history of colliding galaxies: From oddballs to galaxy building blocks"
Tales of A history of colliding galaxies: From oddballs to galaxy building blocks explains how scientists determined the role of colliding galaxies in the story of galaxy evolution. The story begins with an early attempt to model galaxy interactions and concludes with using the Hubble Space Telescope to find young clusters of stars.
Format(s) available: Printer-friendly Web page
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 Tales of A history of colliding galaxies: From oddballs to galaxy building blocks as:
A content reading selection. Teachers should discuss the meaning of unfamiliar vocabulary prior to having students read this selection.
An engagement activity. Have students read the selection. Ask them to describe how scientists discovered the role colliding galaxies play in galaxy evolution.
An inquiry tool. Propose a question, such as "How do colliding galaxies contribute to the growth of galaxies?” Have students read the selection and write down as many questions as they can about the information in the text.
A source of information. Students can describe how the view of colliding galaxies as key players in galaxy evolution has changed over the years.
HubbleSite press release images of interacting galaxies: "Cosmic Collisions Galore!"