Dean chats with Dr. Amanda Bauer, Head of Science and Education at the historic Yerkes Observatory in Wisconsin. Listen in to learn about the largest refracting telescope in the world and Dean's ...

Refractor telescopes use a series of glass lenses to collect and focus the light. They are excellent for viewing the moon or larger (or closer) planets.

Refractor telescopes use a series of glass lenses to collect and focus the light. They are excellent for viewing the moon or larger (or closer) planets.

Refractor telescopes use a series of glass lenses to collect and focus the light. They are excellent for viewing the moon or larger (or closer) planets.

Refractor telescopes use a series of glass lenses to collect and focus the light. They are excellent for viewing the moon or larger (or closer) planets.

Refractor telescopes use a series of glass lenses to collect and focus the light. They are excellent for viewing the moon or larger (or closer) planets.

Refractor telescopes use a series of glass lenses to collect and focus the light. They are excellent for viewing the moon or larger (or closer) planets.

Refractor telescopes use a series of glass lenses to collect and focus the light. They are excellent for viewing the moon or larger (or closer) planets.

Refractor telescopes use a series of glass lenses to collect and focus the light. They are excellent for viewing the moon or larger (or closer) planets.

Refractor telescopes use a series of glass lenses to collect and focus the light. They are excellent for viewing the moon or larger (or closer) planets.

Refractor telescopes use a series of glass lenses to collect and focus the light. They are excellent for viewing the moon or larger (or closer) planets.