Video from NASA .. Two Earthquakes on Mars
WASHINGTON (Reuters) - NASA on Tuesday released two soundtracks of two seismic activities on Mars after placing a "very sensitive" detector on the planet late last year.
The earthquakes, which were so faint that human ears could not be heard, were recorded by the seismic experiment of the internal structure (CIIS) in May and July.
Scientists hope that a study of the movement of seismic waves across the planet will reveal the deep inner structure of Mars for the first time.
