Mars... ringing like a bell.
After the September 5 meteoroid slammed into the Martian surface in triplicate, NASA’swas sent to track down the resulting craters, where it took some preliminary black and white photos.
The orbiter’s team followed that up by using the High-Resolution Imaging Science Experiment camera to capture colorful closeups of the impacts, which you can view in NASA’sEven though Mars’ weak atmosphere lets through far more meteoroids that don’t break apart than on Earth, detecting them is a challenge due to wind noise and seasonal changes in the Martian atmosphere, NASA says.
But with the discovery of the September 5 impact, scientists knew what seismic signatures to look for, and were able to retroactively detect three additional impacts as far back as May 2020."Impacts are the clocks of the solar system," said lead author Raphael Garcia in the release. "We need to know the impact rate today to estimate the age of different surfaces."
France Dernières Nouvelles, France Actualités
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