Earth shares its orbit with a handful of Trojan asteroids clustered around the L4 and L5 Lagrange points — gravitationally stable regions 60 degrees ahead of and behind Earth in its path around the Sun. The first confirmed Earth Trojan, 2010 TK7, was discovered by the NEOWISE mission; others include 2020 XL5. Unlike Jupiter's vast Trojan swarms, Earth's population is tiny because solar perturbations and close encounters with Venus make long-term stability difficult. These co-orbital asteroids librate around their Lagrange points rather than sitting fixed, tracing tadpole or horseshoe paths over centuries. Their orbits offer a window into how small bodies can be captured and shepherded by planetary gravity in the inner Solar System.