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Earth has a new moon - or at least a 'quasi-moon', a new study has revealed. A quasi-moon is a space rock that circles the Earth, but is gravitationally bound by the sun. This quasi-moon, called 2023 FW13, was discovered by experts using the Pan-STARRS telescope at the top of the Haleakala volcano in Hawaii, and is one of a handful of known quasi-moons. Experts think the ancient cosmic companion has been in Earth's vicinity since 100 BC and will keep circling our planet for at least another 1,500 years, until AD 3700. Thankfully, neither 2023 FW13 or a similar...

Researchers from the University of Cincinnati have found evidence of a cosmic cataclysm 1,500 years that may be responsible for the downfall of the Hopewell Culture. The Hopewell Culture was a widely dispersed set of pre-Columbian Native American populations connected by a common network of trade routes from 100 BC to AD 500 in the Middle Woodland period. The researchers found evidence of a cosmic airburst at 11 Hopewell archaeological sites in three states stretching across the Ohio River Valley in the United States, which rained debris down into the Earth’s atmosphere creating a fiery explosion around 1,500 years ago...