The Center for Astrophysics | Harvard & Smithsonian Radio & Geoastronomy (R&G) division explores the Universe using the low-energy portion of the electromagnetic spectrum, including the radio, ...

Throughout the last century of scientific discovery, as well as the history of popular culture and science fiction, black holes have been a source of fascination and mystery. One thing is certain: ...

The Smithsonian Astrophysical Observatory (SAO) was founded in 1890 under Smithsonian Secretary Samuel Pierpont Langley as a research bureau of the Smithsonian Institution. It began its tenure ...