One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate’
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 ...
AlphaGalileo2d
The black hole M87*: What has changed in one year
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Impacts3d
The Evolution of Telescopes: From Galileo to Modern-Day Astronomy
The journey of astronomical telescopes began in the early 17th century when Galileo Galilei crafted his first refracting ...
Leo P’s Stellar Comeback: Unveiling the Secrets of a Reignited Galaxy
Leo P, a galaxy once dormant, has reawakened to form stars again, offering new clues about the universe's earliest galaxies.