The total value of an artist’s artworks sold at auction over a specific period. This metric reflects the artist’s overall market activity and demand in monetary terms. The middle value of all realized ...

Scientists found new evidence that Earth’s crust is peeling underneath the Sierra Nevada in California. The process might be how the continents formed, they say.

Schulte-Pelkum was already studying the Sierra Nevada’s peculiar rock footprint, which had shown deep rock deformations within the same area. Using the newfound data, the researchers imaged the ...