Quantcast
issue
Read articles, including Science News stories written for ages 9-14, on the SNK website.
ROCK OF AGE

California’s Long Valley is the remains of a supervolcano that exploded 760,000 years ago. Quartz grains in rocks from the eruption suggest the magma chamber beneath it was there only briefly. Credit: G. Gualda/Vanderbilt University

Follow Us
blogs & columns
multimedia
Not to miss
bookshelf