Pluto Is a Planet, Panel Says

 ∙  55 mins ago

Arizona scientist David Grinspoon joined a panel recently talking about NASA’s New Horizons mission to Pluto – but the scientists were most animated discussing the status of the recently classified “dwarf planet.”

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Remembering Laser Pioneer Gordon Gould

 ∙  11 hours ago

American physicist who coined the word laser from the initial letters of “Light Amplification by Stimulated Emission of Radiation.” Gould was inspired from his youth to be an inventor, wishing to emulate Marconi, Bell, and Edison.