an object occurring naturally; not made by man

(astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust

natural objects visible in the sky

a natural object existing outside the earth and outside the earth's atmosphere

of worldwide scope or applicability

(cosmology) a universe that is spatially closed and in which there is sufficient matter to halt the expansion that began with the big bang; the visible matter is only 10 percent of the matter required for closure but there may be large amounts of dark matter

the physical universe considered as an orderly system subject to natural (not human or supernatural) laws

the natural physical world including plants and animals and landscapes etc.

(astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust

natural objects visible in the sky

a natural object existing outside the earth and outside the earth's atmosphere