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Space.com on MSN'Planetary defense is knowing what's out there and what could do harm to us.' Meet the scientist who helped build NASA's asteroid response planLindley Johnson has been a pioneer in blueprinting warning and response scenarios to any potential impact of Earth by an ...
A long-elusive, hypothetical subatomic particle called the axion can be simulated and potentially detected in a type of thin material.
We humans have never been very good at planning for the distant future, so designing airplanes for a time when the only source of energy for propulsion is electricity seems like a science fair ...
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