Q&A 156: Are We Seeing the Same Galaxy Many Times? And More...
In this week's questions show, I explain why we don't see the same thing multiple times as we look out into the Universe, could a planet orbit in the Lagrange Points of two stars, and why haven't there been any missions to Io?
Watch the video here or on YouTube:
(We're still catching up on a backload of live shows that we did, so stay tuned to more episodes coming quickly.)
Q&A 156_ Are We Seeing the Same Galaxy Many Times_ And More....mp4 (Vimeo)
Comments (1)
The question and response about a mission to Io brought back an interesting memory. I was in grad school in the late 1960s. My advisor was a physicist, but actually mostly interested in astrophysics. Sometime in that era radio astronomers noticed that the radio emission from Jupiter was modulated by Io. My advisor was astounded by this fact. How could a tiny moon have an effect on the radiation from the largest planet?? Of course, this was years before the Voyager flybys, the discovery of Io's volcanism, and the ring of plasma it creates linking Io to Jupiter!!