 Measurements made of the apparent diameter of Venus during the transit , and comparison with its known diameter , will give scientists an idea of how to estimate exoplanet sizes . 
 Measurements made of the apparent diameter of Venus during the transit , and comparison with its known diameter , will give scientists an idea of how to estimate exoplanet sizes . 
Measurements made of the apparent diameter of Venus durin the transit , and comparison with its known diameter , gon give scientists an idea of how to estimate exoplanet sizes .