Planetary evolution

Huge and widespread volcanic eruptions triggered the end-Triassic extinctionSome 200 million years ago, an increase in atmospheric CO2 caused acidification of the oceans and global warming that killed off 76 percent of marine and terrestrial species on Earth.

Mapping the early history of the moonIn 41st annual Killian Lecture, Maria Zuber describes looking deep into the moon’s interior to chart its early history.

Mercury may have harbored an ancient magma oceanMassive lava flows may have given rise to two distinct rock types on Mercury’s surface.