Speaker one Minus 273 degrees Celsius is the lowest possible temperature. It’s called absolute zero. Any object with a temperature above this will emit and absorb infrared radiation, even the Earth.

The mysterious cube arrived in the summer of 2013. Physicist Timothy Koeth had agreed to go to a parking lot for an unspecified delivery. Inside a blue cloth sack, swathed in paper towels, he found a ...

Researchers are piecing together what exactly happened to hundreds of cubes of uranium from a secretive and ultimately failed effort to build a working nuclear reactor in Nazi Germany during World War ...