Telescope Aberration
This animation explains what telescope aberration is and shows how Earth's rotation affects the shape of viewed objects
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Unweaving the Rainbow of Cosmic Light
This video focuses on one of the Hubble Space Telescope's most important, but least known, functions. For much of their research, astronomers use Hubble's spectrometers—devices that split up light into a rainbow of component colors—to reveal many hidden properties of the universe. These observing methods may not produce attractive images, but they lie behind some of the most profound science that Hubble does. In this video, presenter Joe Liske (Dr. J) and Hubble astronomer Bob Fosbury give an introduction to spectroscopy using Hubble. Credit: ESA Hubble Videos; Hubblecast 59: Unweaving the Rainbow; Directed by: Oli Usher; Visual design and editing: Martin Kornmesser; Written by: Oli Usher; Interviews: Oli Usher; Filming: Herbert Zodet; Presented by: Joe Liske (Dr J), with Bob Fosbury; Narration: Sara Mendes da Costa; Images: NASA, ESA, Bob Fosbury, Martin Kornmesser; Visualisations and animations: Luis Calçada, Martin Kornmesser, André Roquette; Music: Steve Buick; Web and technical support: Mathias Andre and Raquel Yumi Shida; Cinematography: Peter Rixner; Executive producer: Lars Lindberg Christensen
Unweaving the Rainbow of Cosmic Light