Significats de unknown body en anglès

The other day at the planetarium you suggested the unknown body fell from outer space.

Absolutely it was cast by an unknown body.

The unknown body must therefore be a planet which would have to be sought for by telescopic aid.

Its movements were so rapid, its disappearance so sudden, that it was impossible to obtain another glimpse of the unknown body.

The police would come and take up this unknown body, and doubtless would carry it, to be identified, to the Morgue.

Both calculated the orbit of this unknown body, Adams sending his calculations to the Royal Observatory at Greenwich, and Leverrier to the observatory at Berlin.