For years, scientists have viewed cancer as a localized glitch in which cells refuse to stop dividing. But a new study suggests that, in certain organs, tumors actively communicate with the brain to trick it into protecting them. Scientists have long know... See more
Artist's impression of the planet Theia colliding with ancient Earth to create the moon ROUGHLY FOUR AND A HALF billion years ago the planet Theia slammed into Earth, destroying itself, melting large portions of our planet's mantle and ejecting a huge deb... See more
For decades, astronomers have known that supermassive black holes lurk at the hearts of essentially all large galaxies, occasionally feasting on infalling material and burping out powerful jets. But what’s been less clear is how, exactly, this activity sh... See more
Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of Earth’s mantle and ejecting a huge debris disk that later formed the moon. Scientists have long wondered what Theia was made of and... See more
