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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 ...

(ESA/Gaia/DPAC, Stefan Payne-Wardenaar) We've waited a long time for such a detailed look at our galaxy. Radio astronomy, which gained momentum in the 1950s, helped us understand the structure of the ...

Death Valley National Park offers some of the best stargazing in America, with DarkSky International having designated it as a Gold Tier Dark Sky Park.

The magnificent Andromeda galaxy (Messier 31), stands out as the most important nearby stellar island to our Milky Way, and ...

For humans, the most important star in the universe is our sun. The second-most important star is nestled inside the ...

If we could go back 101 years, we would encounter a time when scientists still thought the Milky Way was the entirety ... we have one man to thank for this: Edwin Hubble. That's certainly partly ...

The next step is to build even more sophisticated models to explore what these "stars" might look like so that astronomers can compare the predictions to real-world observations. Paul M.

But around the cosmic time that we are seeing the Firefly Sparkle, Milky Way-like galaxy progenitors were about 10,000 times less massive than today’s Milky Way. Hopefully with the collaboration ...

(Artist’s concept.) Credit: SciTechDaily.com Spur and gap features seen in Milky Way’s GD-1 stellar stream could be caused by a self-interacting dark matter subhalo. New research points to a dark ...