In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

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 ...

The Hubble Space Telescope captured the ​​colorful, wispy clouds near the Tarantula Nebula, one of the most luminous and ...

Nebulae are gigantic clouds of gas and dust that exist in space between stars. Check out 7 mesmerizing photos of this cosmic ...

Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they were independent galaxies, extremely large and distant. At the time ...

On an astrotourism trip like Gorov's, celestial objects take center stage. More travelers are seeking out the feeling of awe ...

Using Hubble observations of dusty nebulae in the Large Magellanic Cloud and other galaxies, researchers can study these distant dust grains, helping them better understand the role that cosmic ...

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

In the century since Hubble’s pioneering work, astronomers like me have learned that the universe is vast and contains trillions of galaxies. Nature of the nebulae In 1610, astronomer Galileo ...

Bring the Moon and planets into closer view, spot stunning star clusters and observe distant galaxies and nebulas with your own eyes — you can even photograph your subject with a smart telescope.