Resources Replay movie

How does a telescope work? What else do we know about the Whirlpool Galaxy? Now that you've seen "Piercing the Sky," visit these pages to find out more about galaxies and telescopes.

More about galaxies
The Whirlpool Galaxy Hubble Reveals the Heart of the Whirlpool Galaxy. A detailed view of the Whirlpool galaxy's spiral arms and dust clouds:
The Hubble Heritage Project: More pictures and information about the Whirlpool Galaxy:
HubbleSite Newscenter logo Hubblesite's NewsCenter galaxy section: The complete collection of Hubble's galaxy news release images:
Cosmic Collision logo Cosmic Collision: A multimedia show about galaxy collision and the fate of our own Milky Way:

The following link will take you out of HubbleSite:

Amazing Space logo Amazing Space's "Capture the Cosmos" galaxy section: Online adventures, pictures, and fun facts:

More about telescopes

The following links will take you out of HubbleSite:

Telescopes from the Ground Up logo Take a historical tour of humankind's celestial spy shop at Amazing Space's "Online Explorations: Telescopes from the Ground Up":
Lord Rosse's Leviathan Check out the astronomy section of the Birr Castle Web site for more information on Lord Rosse and his astronomical adventures:
Telescope history logo An amateur astronomer of 50 years introduces us to 10 important refracting telescopes throughout history:
Telescope technology logo Find out how the major types of telescopes work and what makes a great telescope with this guide by a college science professor:

Lord Rosse's sketch of M51: Birr Castle Archives

100-inch Hooker Telescope at Mt. Wilson: Larry Adkins:

Images of Edwin Hubble: Huntington Library

Great Spiral Galaxy in Andromeda (M31): Robert Gendler:

Edwin Hubble's M31 Cepheid discovery "VAR!" plate: Courtesy of the Observatories of the Carnegie Institution of Washington

Ground-based image of M51 The Whirlpool Galaxy: Travis Rector & Monica Ramirez (NOAO):

Wide-angled ground-based view of M51 The Whirlpool Galaxy: Ron Wodasky:

Music: Music by Mark Petersen: