Hydrogen line

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121	PDF Document Add to Reading List Source URL: waiferx.com Language: English - Date: 2008-02-28 18:36:22 Pioneer program Radio astronomy Star types Spaceflight Voyager Golden Record Hydrogen line Pulsar Voyager 1 Search for extraterrestrial intelligence Spacecraft Space Extraterrestrial life
122	PDF Document Add to Reading List Source URL: www.blacklightpower.com Language: English - Date: 2012-05-18 12:53:28 Hydrogen Atoms Blacklight Power Pseudophysics Pseudoscience Hydrogen line Energy density Plasma Introduction to quantum mechanics Physics Chemistry Matter
123	PDF Document Add to Reading List Source URL: cfa-www.harvard.edu Language: English Reionization Cosmic microwave background radiation Hydrogen line Recombination Big Bang Dark matter Galaxy Universe Plasma Physics Astronomy Physical cosmology