trojan

Earth has an extra companion, a Trojan asteroid that will hang around for 4,000 years

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In 2020, astronomers thought they’d found something incredible: the second so-called Earth Trojan asteroid ever seen. Now, a new team of researchers has confirmed that it’s real. Trojan asteroids are small space rocks that share their orbit with a planet, circling whatever host star that planet does in a stable orbit. While we have spotted … Read more

It’s Official! A New Trojan Asteroid Has Been Discovered Sharing Earth’s Orbit

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Earth has officially been joined in its orbit around the Sun by a new trojan asteroid. Named 2020 XL5, this chunk of rock is only the second object of its type ever to have been conclusively identified. Its discovery suggests that perhaps Earth trojans may be more common than we knew, and offers new insights … Read more