Physics
Rainbow galaxies reveal why cosmos is full of spirals
Psychedelic pictures of 30 galactic collisions show for the first time that merging galaxies often spawn disc-shaped offspring like our Milky Way
Regulars
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Psychedelic pictures of 30 galactic collisions show for the first time that merging galaxies often spawn disc-shaped offspring like our Milky Way
Sky surveys suggest that dark matter or some other mysterious dark material may be lighting up the universe with too much ultraviolet radiation