Measuring the Pulse of Mars

An artist's rendition of Mars, highlighting one of InSight's goals -- to figure out just how tectonically active Mars is today and how often meteorites impact it. Interior Exploration using Seismic Investigations, Geodesy and Heat Transport, or InSight, is scheduled to launch from Vandenberg Air Force Base on the California coast between May 5 through June 8, 2018, and land on Mars six months later. InSight will give the Red Planet its first thorough check up since it formed, 4.5 billion years ago. The InSight lander carries a seismometer, SEIS, that listens to the pulse of Mars. The seismometer records the waves traveling through the interior structure of a planet. Studying seismic waves tells us what might be creating the waves. On Mars, scientists suspect that the waves may be caused by marsquakes, meteorites striking the surface, or hot, molten magma moving at great depths underneath the surface. https://photojournal.jpl.nasa.gov/catalog/PIA22230