Determining the authenticity of a diamond requires professional equipment and a highly trained eye. At-home tests do ...

This is the last of three blog posts associated with this week’s episode of Cosmos: A Spacetime Odyssey, which addresses life in the universe. Read the first and second here. Someday, in the not too ...

“A single application is never sufficient, but applying this doubled, rescaled force guarantees an exact return,” boasts ...