Core science Some mantle plumes are enriched in 3 He, but the source of this primordial isotope is unclear. The partitioning behaviour of helium between silicate and iron melts—as determined by ...

A representation of the underground imaging used in the study. (Edward Garnero and Mingming Li/Arizona State University) The ...

A consortium of consultants and science educators has released its final draft of what it plans will become national education standards for K-12 science. They are titled Next Generation Science ...

Georgetown University requires all undergraduate students to complete a course designated “Science For All” (SFA), grounded in the belief that all Georgetown students should understand scientific ...

When Earth first formed around 4.5 billion years ago, it was a ball of molten rock. Over time, heavier elements, like iron and nickel, sank to the planet's center, forming the Earth's early core.