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abstraction > hypothesis > theory > astronomy theory > galaxy theory > top-down scenario |
top-down scenario | ||||
subject | fact |
top-down scenario | has definition A scenario of galaxy formation in which large structures form first and then fragment to become galaxies. | |
is a kind of galaxy theory | ||
galaxy theory | has domain extragalactic astronomy | |
theory | has validity correct or incorrect with caveats | |
has author or reasearch group | ||
has date or a range of dates for which the theory was active |