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 ...

This image was created by combining data from three major observatories: NASA’s Chandra X-ray Observatory, the Hubble Space ...

Enabled by supercomputing, University of Pretoria (UP) researchers have led an international team of astronomers that has ...

"The idea that they can somehow obliterate these sources is dead wrong — scientists in general and astronomers in particular ...

Possibly one of the best-known constellations in the northern sky, Ursa Major—or the Great Bear—contains an asterism of seven ...

Programs include a session on fruit tree pruning, a salamander meet and greet and children's programming focused on bugs.

Einstein predicted that massive objects bend light as it passes through their gravitational field. This week, a new telescope ...

Astronomers spent a decade compiling this special image with the Hubble Space Telescope and then stitched together 600 photos to showcase over 200 million stars.

Astronomers trace the striking pattern to an encounter between a big galaxy and a much smaller one some 50 million years ago.

The Tarantula Nebula, also known as 30 Doradus, is revealed in an unusual light in this exceptionally deep Chandra X-ray ...

Centaurus A: NGC 5128 is a galaxy in constellation Centaurus, discovered in 1826 by Scottish astronomer James Dunlop. Messier 81: NGC 3031 is a grand design spiral galaxy about 12 million light ...

The discovery was made by Imad Pasha, a doctoral student at Yale University, who stumbled upon the unique galaxy while examining a ground-based imaging survey. "This ...