Celestial Cities and the Roads That Connect Them
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Observations from NASA Spitzer Space Telescope show that filamentary galaxies form stars at twice the rate of their densely clustered counterparts. This is a representation of galaxies in and surrounding a galaxy cluster called Abell 1763. — NASA JPL · 2008. ABD devlet eseri: kamu mali, ticari islerde de serbestce kullanilabilir.
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