Assertion: mercury | /r/CapableOf | transit the sun
Facets:
value: backward
type: MANNER
value: in their orbits
type: LOCATION
Source sentences:
text: Mercury transiting the Sun as viewed by the Mars rover Curiosity (June 3, 2014).
text: For Mercury, retrograde motion happens three times a year because it goes around the sun every 88 days
text: Appears” is the key word here, because, technically speaking, no planet actually moves backward in their orbits around the Sun.
text: Mercury travels around the Sun every 88 Earth days.
text: When Mercury transits the Sun, you can see it as a tiny black dot silhouetted against the Sun's disk.