According to legend, Galileo dropped weights off of the Leaning Tower of Pisa, showing that gravity causes objects of different masses to fall with the same acceleration. In recent years, researchers ...

Tennessine is an extremely rare element. Only a few dozen atoms of it have ever been produced. The tale of how the first atoms of Tennessine were created is complicated. There are rare chemical ...

Every chemical reaction faces a barrier: For substances to react with one another, it is first necessary to supply energy. In ...

Thirty years ago this week, scientists turned science fiction into science. By picking up one atom at a time and using a handful to draw the letters I, B, and M on a solid surface, researchers at ...

Stephen L. Levy receives funding from the National Science Foundation and the National Institutes of Health. He is affiliated with CyteQuest, Inc. Richard Feynman, a famous theoretical physicist who ...