Episode 412: QA 51: Could We See Ourselves in the Past? And more..
- Author
- Fraser Cain
- Published
- Thu 29 Mar 2018
- Episode Link
- https://universetoday.fireside.fm/412
In this week's QA, I wonder if we could use the speed of light to see ourselves in the past, how the Mars rovers clean their solar panels, and if aliens would infect us with their bacteria and viruses.
