bonzobanana on 22 February 2017
| Ganoncrotch said: Pretty cool that they're just 40 light years away, still means that the majority of this forums users (myself included) cannot be seen from this planet even if they had magnification great enough for the feat to be possible, they would just be watching the Earth before we were born. |
For the same reason if these 3 habitable zone planets all developed intelligent life and had some huge war 35 years ago destroying all 3 planets we won't know about it for another 5 years. Much of what we see as we look out to space is already gone in the time it has taken the light to reach us especially the stars of other galaxies and even the largest stars in our own galaxy which have relatively short existences compared to medium and small size stars.
