To really study something you want to reach out and touch it. But what can you do if you’re separated by huge distance. You reach out with electromagnetic or sound waves and watch how they bounce back. Thanks to radar, sonar and lidar.

To really study something you want to reach out and touch it. But what can you do if you’re separated by huge distance. You reach out with electromagnetic or sound waves and watch how they bounce back. Thanks to radar, sonar and lidar.