Today we rely largely on what technique to precisely measure distances in the solar system?
A)transits of Venus across the Sun
B)radar echo timings
C)measurement of stellar parallaxes
D)timings of the eclipses of its moons by Jupiter's shadow
E)precise measurements of length of the year with atomic clocks

Question

Quizplus · Accepted Answer

Radar echo timings are the most precise technique for measuring distances in the solar system. This method involves bouncing a radar signal off a planet or other object and timing how long it takes for the signal to return. This allows for the calculation of the distance based on the speed of light. This method has been used to accurately measure the distance of planets, asteroids, and even the Moon. Radar echo timings are the most precise technique used to measure distances in the solar system. By bouncing radar signals off planets, asteroids, and other objects, scientists can measure the time it takes for the signal to travel to the object and back. This information, combined with the speed of light, allows for precise calculations of distance. The other options listed have been used historically, but are not as precise as radar echo timings.

Today We Rely Largely on What Technique to Precisely Measure