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Feb 2015
1m 41s

Space Science Budget Gets Small Lift

Scientific American
About this episode
NASA has to deal with the unexpected financial consequences of robotic missions that just keep going. Lee Billings reports 
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Feb 2015
Bacteria Got an Early Fix on Nitrogen
New evidence points to the evolution of the ability for bacteria to grab nitrogen from the atmosphere some 3.2 billion years ago, about 1.2 billion years earlier than thought—with implications for finding extraterrestrial life. Lee Billings reports 
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Feb 2015
Stars Reveal Hidden Galaxy
A dwarf galaxy near the Milky Way may consist of more dark matter than regular matter.* Clara Moskowitz reports 
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Feb 2015
5 Rocky Planets Found in Ancient, Distant Solar System
The oldest group of terrestrial worlds now known formed some 11.2 billion years ago, more than six billion years before our sun and planets. Clara Moskowitz reports 
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