A chunk of space rock that visited near Earth's orbit last year was widely called a "mini-moon," a nickname that was more ...

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For a brief, but exciting, time last year, Earth had two moons. A small asteroid lingered close to our planet in its orbit around the Sun, temporarily caught by Earth’s gravity to become a far away ...

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By Becky Ferreira For a few months last fall, a school-bus-size space rock named 2024 PT5 gained fame as Earth’s new “mini-moon.” Astronomers rushed to study the object while it was still ...

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While the space rocks largely originate from the main asteroid belt located between Mars and Jupiter, some have been created after impacts chipped off parts of the moon's surface.

A small space rock that lingered near Earth last year and was referred to as its temporary “mini-moon” may actually be a chunk of the moon that chipped off thousands of years ago. The ...