Should we make a treaty with aliens?

Harvard tenured (astro)physicist Prof Abraham Loeb has published an article in Scientific American called, “How to Avoid a Cosmic Catastrophe,” in which he proposes a treaty with our closest extraterrestrial neighbors in the Milkdromeda neighborhood to protect us from articially created domain walls. That is a lot to unpack. Let’s start with what a domain wall is…

Tabby’s Star: Not an Alien Megastructure After All

Some of you have heard of the fuss over KIC 8462852 aka Tabby’s Star. Back in 2015, the Kepler Space Telescope noticed that the star was flickering and dramatically dimming. This resulted in immediate speculation that the star’s strange behavior was evidence of an advanced alien civilization that was building a vast solar array that…