An astronomer has re-created a periodic table color-coded with the cosmic origins of all the elements. The table draws on research from astronomers and physicists who studied the universe and its ...

One hundred fifty years after Russian chemist Dmitri Mendeleev published his system for neatly arranging the elements, the periodic table it gave birth to hangs in every chemistry classroom in the ...

The Laboratory in Blue Prince is home to two puzzles: the periodic table puzzle and the machine puzzle. Both puzzles are intertwined with one another — you’ll need to solve the periodic table puzzle ...