Dr. Dish shares his fascinating factoids about NASA’s Deep Space Network.

How big is an antenna?


<img src="/assets/images/dr-dish/drdish1-large.jpg" width="360" height="362" alt="Picture of Dr. Dish" title="Picture of Dr. Dish">Dr Dish here! Did you know the 70-meter antenna dish is almost as big as a football field?

What can a DSN antenna do?


<img src="/assets/images/dr-dish/drdish2-large.jpg" width="450" height="400" alt="Picture of Dr. Dish" title="Picture of Dr. Dish">Dr. Dish here! Did you know that the Deep Space Network, using only three antennas, can non-stop track any spacecraft between our moon and the very edge of the solar system?

Why do you need a big antenna?


<img src="/assets/images/dr-dish/drdish3-large.jpg" width="450" height="400" alt="Picture of Dr. Dish" title="Picture of Dr. Dish"> For a spacecraft in Earth orbit, like the ones people use to get TV shows, you need only a small dish.<br /> If that satellite were at the moon, hundreds of thousands of miles away, you'd need a dish as big as a two-story house!<br /> And if it were millions of miles away, like Mars or the other planets, you'd need a dish that's ten times that big - like the ones at the Deep Space Network!