The sacrifice of at least 42 children in Tenochtitlán, now Mexico City, was an effort to calm the anger of the Aztec rain god ...

After discussing the quirks in 3D modeling software, where a laser beam is treated as a solid object that can cast a shadow, ...

The world's biggest coral — an organism made up of about a billion polyps — is about three times bigger than the previous record-holder and was discovered by chance during an expedition off the ...