Do Trojan exoplanets exist?


Co-orbiting worlds, also known as Trojan horses, have yet to be found outside the solar system. It’s a strange thing, a new study suggests, given that we’re constantly seeing them closer to home.

Our solar system is full of Trojan horses; asteroids orbit the sun along the same path as a larger planet (like Jupiter) about 60 degrees ahead and behind the planet. But it could be that tidal forces are altering the orbits of larger worlds, like an exoplanet.


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