Does Earth Have a Trojan Horde?

(Syfy Wire::Bad Astronomy) – Phil Plait:

Are there asteroids sharing Earth’s orbit around the Sun?

Cutting to the chase: Yes, there is at least one. But how many are there? There might be a lot, but we don’t know. The cool news is, we may very well know more soon. …

blastr 2017-2-14 trojan-horde

OSIRIS-REx at Earth's L4

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