the.com/great attractor
A gravity mystery dragging our galaxy sideways, and no one agrees why.
means A gigantic, dimly understood concentration of mass in deep space whose gravity is pulling the Milky Way and hundreds of thousands of other galaxies toward it.
from Not a word with ancient roots but a 1980s astronomical label: astronomers tracking galaxy motions noticed our neighborhood of the universe drifting sideways far faster than expected, as if something huge and unseen were hauling it along. They named the culprit descriptively — 'Great' for its mass, 'Attractor' for the pull — before they could actually see it, since it sits partly hidden behind the Milky Way's own disk in what's nicknamed the 'zone of avoidance.' The name is plain English physics vocabulary, not borrowed from Latin myth or metaphor; it stuck because the mystery itself, not the word, did all the work.
- location
- hidden behind the Milky Way's own dusty disk
- pull strength
- tugging us at roughly 2 million km/h
- true cause
- likely a supercluster, the Norma Cluster, not a monster
- bigger picture
- itself drawn toward the larger Shapley Supercluster beyond