Taxonomy term

gabriel popkin

New lunar research answers old questions, poses others

From its close perch in the sky, the moon has long mystified artists, lovers and scientists. Now a quartet of recent papers — all of which touch on the moon’s violent birth and turbulent infancy — may help scientists put two long-standing lunar mysteries to rest, while deepening a third enigma and suggesting a speculative solution to a fourth.

23 Oct 2014

A watery surprise from Earth's depths: Mineral provides first direct evidence for water in mantle's transition zone

From a depth of more than 500 kilometers, Earth has coughed up a water-bearing mantle mineral never before found on the surface. The surprise finding suggests the planet’s interior holds more water than all its oceans combined, and could help explain how Earth’s massive tectonic plates move.

14 Jul 2014