A bright fireball streaked across the sky above mountains, glaciers and spruce forest near the town of Revelstoke in British Columbia, Canada, on the evening of March 31, 1965. Fragments of this ...

Alexander Gysi believes that understanding when, how and where critical minerals form is essential for U.S. independence in resourcing these elements. “That’s the first step of exploration,” said Gysi ...

Earth’s deep interior may hold water equal to today’s oceans, challenging long-held views of how the planet became habitable.