M e d i u m D e e p S u r v e y
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The Top Ten List of Gravitational Lens Candidates from the HST Medium Deep Survey.
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Kavan U. Ratnatunga, Richard E. Griffiths & Eric J. Ostrander
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Natural Lenses in Space Stretch Hubble's View of the Universe
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NASA Press release STScI-PR99-18
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Universal spectacle
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By Byron Spice, Science Editor, Pittsburgh, Post-Gazette
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Galactic `magnifying glasses' unlock distant mysteries
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By Alex Salkever, The Christian Science Monitor
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Hubble sights distortions from gravitational `lenses'
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CNN interactive - 1999 May 14
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Readers Can View Top 10 Gravitational Lens Images
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By Don Radler, Editor, University Science
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Hubble Spots Space `Lenses'
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By Mark Sincell, Discovery Online News
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Through the looking glass
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By Dr John M. Horack, Director, Space Science News.
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Hubble's Mirages
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The Editors of Sky and Telescope Magazine
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Natural lenses in space stretch Hubble's view of the universe
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Pole Star Publications Ltd., Astronomy Now Online
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A Gallery of Gravitational Mirages
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Astronomy Picture of the Day - 1999 June 1
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The HST Medium Deep Survey Cluster Sample: Methodology and Data
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Eric J. Ostrander, Robert C. Nichol, Kavan U. Ratnatunga,
and Richard E. Griffiths
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Far-Flung Galaxy Clusters May Reveal Fate of Universe
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NASA Press release STScI-PR98-27
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Peering deep into space
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Byron Spice, Science Editor, Pittsburgh Post-Gazette
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Hubble Reveals More Distant Galaxy Clusters
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The Editors of Sky and Telescope Magazine
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A Cluster Too Far
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Astronomy Picture of the Day - 1998 September 8
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Distant Clusters of Galaxies
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NASA's Observation of the Week - 1998 October 21
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New "Einstein Cross" Gravitational Lens
Candidates in HST WFPC2 Survey Images
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Kavan U. Ratnatunga, Eric J. Ostrander,
Richard E. Griffiths, and Myungshin Im
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Hubble Discovers new class of Gravitational Lens for probing structure of the Cosmos
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NASA Press release STScI-PR95-43
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A Galaxy Gravitational Lens
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Astronomy Picture of the Day - 1995 December 20
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A Cosmic Lens
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NASA's Observation of the Week - 1996 January 10
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, Karl Kosack
kosack@astro.phys.cmu.edu
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