Reexamined Viking 2 Signal Reveals Possible Marsquake From Region Active Decades Later
The finding compares Viking 2 recordings with InSight data and suggests one event may have come from the same region that produced nearly 1,000 marsquakes.
4 Articles
4 Articles
Reexamined Viking 2 signal reveals possible marsquake from region active decades later
Earthquakes and the seismic waves they generate provide some of the best clues to Earth's interior. To extend that success to other worlds, scientists placed seismometers on the Apollo missions to the moon and on the Viking Mars landers, which reached Mars in 1976. Though the Apollo detectors proved a resounding success, Viking's results on Mars were less clear: Viking 1's seismometer failed to deploy properly, and Viking 2 recorded only two ambiguous events.
Mysteries from 1976: The Marsland Viking 2 recorded two striking signals, but for a long time it remained unclear what it had triggered. A new analysis now indicates that one of the signals could come from a region in which decades later probably numerous Mars quakes occurred. However, other explanations remain possible. Peking (China). Mars [...] The article Newly analyzed Viking 2 signal shows Mars quake decades ago appeared first on scanxx
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