[ad_1] These days, it feels as if you can’t go very long at all before scrolling past anoth­er announce­ment about some new tech­no­log­i­cal devel­op­ment (real­ized or sched­uled) relat­ed to space explo­ration. Some react to this by won­der­ing what could pos­si­bly be out there in the uni­verse to jus­ti­fy such enor­mous­ly cap­i­tal- and research-inten­sive projects. Cen­turies […]