Over the past few years, we have witnessed a profound divergence between the heights of our scientific capabilities and the depths of our political failures. Sciences’ emphasis on discovery and collaboration has the power to unite people in the quest for understanding, while our politics often fall foul to divisiveness, fostering pointlessly destructive behaviour. In an age blighted by gratuitous conflict, we must seek to cling to the unifying nature proffered by scientific discovery, writes Avi Loeb. 

“Surely, we can distinguish melted shrapnel from stones,” I noted during an online meeting of the Galileo research team yesterday, as we were planning the machinery for the Pacific Ocean expedition to retrieve fragments from the 2014 explosion of the first interstellar meteor. As shown in a recent paper I wrote with Amory Tillinghast-Raby and Amir Siraj, air friction should have brought down the tiniest spherules just under the explosion site and larger fragments farther along the original line of motion of the meteor up to its intersection with the ocean surface. The fragment size distribution depends on the unknown material composition of the meteorite. The object was tougher in material strength than all other 272 meteors in the CNEOS fireball catalog compiled by NASA over the past decade. If the material happened to be an artificial alloy characteristic of a technological space artifact, the expedition might recover centimetre-sized pieces akin to shrapnel. Large pieces could alert us to the original structure and not just the elemental composition of this object.