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“Alien” mantis species Liturgusa maya may have arrived in the Galápagos as a stowaway in agricultural material, according to a study. Getty Images/iStockphoto The newly confirmed presence of an “alien ...

The key to determining which planets could host extraterrestrial life could be growing in the harshest deserts of Earth in the form of lichen. The secret to this discovery: the "world's best sunscreen ...