Legendary Gaia Spacecraft Maps Entire Galaxy, Promptly Retires
The intrepid mapping mission has collected more than three trillion observations that'll change the way we see our neck of the cosmic woods.
One large Milky Way galaxy or many galaxies?
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 ...
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Two enormous "bubbles" discovered towering above and below our Milky Way galaxy
In the heart of our Milky Way galaxy, two gigantic "bubbles" extend roughly 50,000 light-years above and below the galactic ...
X-Ray Echoes Unveil the Hidden 3D Landscape of Our Galaxy’s Heart
Scientists have created the first-ever 3D maps of star-forming molecular clouds near the Milky Way's supermassive black hole, ...
Largest Structure In Universe, 13,000 Times The Length Of Milky Way Discovered: Study
Astronomers have discovered what they are calling the largest-known structure in the universe. Named "Quipu" after an Incan ...
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A giant radio galaxy could be home to almost 30 Milky Way galaxies
Giant radio galaxies (GRGs) are massive, with plasma jets powered by supermassive black holes at their centers, stretching ...
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100 years ago: Edwin Hubble proved the Milky Way is not the only galaxy in the universe
In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...
Astronomers Discover Largest Structure In The Universe, It's 13,000 Times The Milky Way's Length
Astronomers have identified what they believe to be the largest structure in the universe to date. Named "Quipu" after the ancient Incan method of record-keeping, this colossal superstructure ...