In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the American Astronomical Society ...

Independent journalist Ken Klippenstein reported a surge in leaked government documents regarding Trump's DEIA executive order.

Missouri officials are warning the U.S. Environmental Protection Agency of a “high likelihood” there is radioactive ...