Masters of the universe
These days, astronomers have more accurate methods of measuring the Earth-Sun distance than using transits and trigonometry. In 1976 astronomers timed the echoes of radar signals sent to Venus from Earth to calculate an Earth-Sun distance of 92,955,589 miles.
This figure tallies with the results of the
nineteenth-century astronomers, although they had only been able to calculate the distance to within 1.5 million miles.
| 
|
