Violent past revealed by map of moon's interior | Science News

Be a Champion for Science

Get your subscription to

Science News when you join.


Violent past revealed by map of moon's interior

Gravity survey reveals churned-up layers just beneath lunar surface

9:59pm, December 6, 2012

View the video

SAN FRANCISCO — The moon is cooling and shrinking today, but early in its history it actually got bigger, scientists have found.

As the moon expanded, molten rock rose from its deep interior to cool and solidify into long gashes buried beneath the surface. For billions of years these fiery scars remained hidden, finally revealing themselves to a pair of spacecraft flying overhead.

This article is available only to subscribing members. Join the Society today or Log in.

Get Science News headlines by e-mail.

More from Science News