[rayiner]

> There was an article on reddit questioning why we can track a rover on Mars but not a commercial airliner on Earth.

We have billions of dollars of equipment focused on tracking that rover, and we still lose contact with it sometimes.

[exodust]

we lose contact with the Mars Rover by design. There's a 3 hour window of communication each day. Outside of that window, the rover is on its own.

[judk]

Billions, really? Excluding the equipment used to send the rover to Mars?

[rayiner]

The Deep Space Network:http://www.jpl.nasa.gov/m/news/news.php?release=2013-370#.Ux....