Astronomers uncover how massive stars form by tracking interstellar ammonia. Using the U.S. National Science Foundation ...

Astronomer Vera Rubin, now honored on a U.S. quarter, transformed our understanding of the universe by uncovering powerful ...

Since the 19th century, the Smithsonian Institution has conducted pioneering astrophysical research through the Smithsonian Astrophysical Observatory (SAO). As part of the broader Smithsonian, SAO ...

Astronomers have finally tracked down missing "ordinary" matter, which they discovered hiding as gas spread out in the vast ...

Smithsonian Astrophysical Observatory staffer, Walter A. Munn using the K-50 Geodetic Camera. This is a satellite tracking camera to be used in studies of the earth's shape and size thereby affording ...

Half of ordinary matter in universe has long been 'missing.' Astronomers just found it. Revelations made possible by studying radio waves hurtling through space suggest that violent cosmic forces ...

A new investigation into old Kepler data has revealed that a planetary system once thought to house zero planets actually has ...

PARIS, France - Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our Solar System -- ...

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through the solar system — only the ...

Astronomers yesterday confirmed the discovery of an interstellar object racing through our Solar System — only the third ever ...

Classified as a comet, 3I/Atlas was first spotted on Tuesday by the NASA-funded ATLAS survey in Hawaii. Subsequent analysis ...

Designated 3I/Atlas, this is likely the largest yet detected and has been classified as a comet, or cosmic snowball ...