“…Any primordial Saturn and Uranus Trojans would have been subsequently lost through planetary perturbations (Nesvorný and Dones, 2002;Dvorak et al, 2010;Hou et al, 2014), with the known Uranus Trojans thought to be temporarily captured from among the Centaurs (Alexandersen et al, 2013;de la Fuente Marcos and de la Fuente Marcos, 2014). Some hypothetical Trojans of Earth would have been long-term stable, with the situation at Venus being less clear (Tabachnik and Evans, 2000;Cuk et al, 2012;Marzari and Scholl, 2013); however, so far only temporary coorbitals of these planets are known (Christou, 2000;Christou and Asher, 2011;Connors et al, 2011).…”