Earth as an exoplanet
Posted: 29.08.2019, 09:41
by john71
This is how aliens could see Earth...
https://arxiv.org/pdf/1908.04350.pdf
Posted: 07.10.2019, 21:20
by Joey P.
Some astrophysics think that our Solar System is weird due to the fact that it does not have a super-Earth (Planet Nine may well be one, but it is most likely an ice giant or super-Neptune with a recent paper suggesting it may be a primordial black hole).