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NASA and General Atomics test nuclear fuel for future moon and Mars missions
NASA and General Atomics tested the fuel by exposing it to temperatures up to 3,000 Kelvin (4,940 Fahrenheit or 2,727 Celsius ...
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It’s National Periodic Table Day!
February 7 is National Periodic Table Day, when we celebrate the efforts of scientists over the centuries to figure out how different elements ...
Why are rubies red and emeralds green? Their colors come from the same metal in their atomic structure
The colors of rubies and emeralds are so striking that they define shades of red and green—ruby red and emerald green. But ...
This metal alloy does not expand when heated
Most materials expand when they get warm. Researchers have now succeeded in developing a metal alloy that practically does ...