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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Science Museum of Virginia’s ‘The Dome’ to showcase NASA’s new Andromeda Galaxy mosaic
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.
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Astronomers have brought you a space Valentine: The Tarantula of the cosmos
As the most intense star-forming region in the Local Group, 30 Doradus is of particular importance to astronomers.
Chunks of Alpha Centauri—Our Closest Stellar Neighbor—Might Have Already Reached Us
A new study examines how much material from the closest star system to Earth will end up in orbit around the Sun, and how ...
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NASA Unveils Tarantula Nebula as 'Stellar Bouquet' for Valentine's Day
A stunning Valentine's view of a nebula contains hidden depths of starbirth and the violent deaths of massive stars.