Dark energy, making up 70% of the universe, causes its accelerating expansion. Gravitational waves, predicted by Einstein, were detected from colliding black holes. The Event Horizon Telescope imaged ...

Einstein's 1917 paper, "Cosmological Considerations in the General Theory of Relativity," applied general relativity to the universe as a whole, establishing a firmer basis for cosmology. To create a ...

A classroom intervention that costs just $9 for each child can deliver a three-month boost to children's math skills. The initiative also showed promise in closing the gap between children from ...

Smithsonian STARS— Scientists Taking Astronomy to Rural Schools— aims to bridge gaps in access to hands-on STEM learning opportunities for children in rural and tribal nation schools by providing a ...

Every mathematician has a story that goes something like this. You’re at a party, and someone asks what you do for a living. “I’m a mathematician,” you say. “You must be a genius!” they reply. Or ...

If math never quite stuck for you, Ben Orlin is here to change that. Orlin is a math teacher and author of a new book, Math for English Majors. His mission is to help people see math in a more ...