In 1961, NASA sent radar toward Venus; its echo returned 6.5 minutes later after a 70-million-mile round trip

In 1961, scientists achieved a groundbreaking feat by bouncing radar signals off Venus, marking a pivotal moment in solar system exploration. This experiment not only confirmed the distance to Venus but also refined our understanding of the astronomical unit. The invaluable data gathered facilitated the precise navigation of early Mariner spacecraft, establishing the importance of radar astronomy in modern space exploration initiatives.
Read more at the source

Disclaimer: The content of this post is sourced from external sites and is for informational purposes only. All rights and credits belong to the original authors and publishers.