Which word describes an event where one celestial object passes in front of another?

Which word describes an event where one celestial object passes in front of another?

• A. Transit
• B. Transmit
• C. Universe
• D. Yearly (annually)

Answer: (A)

In astronomy, a transit is when a celestial object passes across the face of another object from our point of view. This crossing lets the foreground body block part of the background object's light, producing a telltale dip in brightness that we can detect—this is how we observe events like exoplanets moving in front of their stars. Transits rely on the alignment along our line of sight, not on sending something somewhere, which is what transmit means. Universe refers to all of space and time and matter, not a specific crossing event, and yearly describes how often something happens, not the act of one body passing in front of another.

In astronomy, a transit is when a celestial object passes across the face of another object from our point of view. This crossing lets the foreground body block part of the background object's light, producing a telltale dip in brightness that we can detect—this is how we observe events like exoplanets moving in front of their stars. Transits rely on the alignment along our line of sight, not on sending something somewhere, which is what transmit means. Universe refers to all of space and time and matter, not a specific crossing event, and yearly describes how often something happens, not the act of one body passing in front of another.