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 ...
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NASA May Have Found The Fastest Planetary System We've Ever Seen
In the Milky Way's central bulge, about 24,000 light-years from Earth, a peculiar pair of objects appears to be hurtling ...
7 breathtaking images of newborn stars captured by NASA
NASA’s James Webb Space Telescope has captured a phenomenon for the very first time. The bright red streaks at top left of this image are aligned protostar outflows – jets of gas from newborn stars ...
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One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate’
Some were gaseous, star-forming regions, such as the Orion nebula, or M42 – the 42nd ... could be enormous stellar systems outside the Milky Way – but astronomers now just call these systems ...