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NASA lander detects mysterious rumble inside Mars



Scientists from NASA reported that its “Mars” exploration lander made an exciting discovery-a mysterious rumble from the planet’s interior.

Researchers believe that the seismic event may be caused by the sudden release of energy inside the planet, but the nature of this release is still unknown and puzzling.

Interestingly, the new rumble is believed to have originated in a location on Mars called Cerberus Fossae, Two other previous candidate events It is considered the origin.

Clouds float over the seismograph SEIS covered by the dome of NASA's InSight lander on Mars. Image: NASA / JPL-Caltech
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The dome-covered instrument recently detected a rumble

Although these rumbles are sometimes called “earthquakes”, it is believed that the planet does not have an active tectonic system like the Earth, which causes earthquakes.

Curiously, the previous seismic event detected by the space agency’s InSight lander- Reached the surface of the earth In 2018-the entire Martian year that occurred in the northern summer of Mars, that is, two years on Earth.

Scientists predict that this season will provide the lander with the best opportunity to listen to the earthquake, because the wind on the earth will become calmer.

InSight’s seismograph (called the Seismic Test for Internal Structure (SEIS)) is so sensitive that it must be covered with a dome-shaped protective cover to protect it from wind and prevent it from freezing during use.

Nevertheless, the wind can still cause enough vibration to cover up the seismic signal it is looking for, so the NASA team has begun to try to insulate sensitive cables.

To this end, the team deployed a spoon at the end of the InSight robotic arm to fill up the soil on top of the dome-shaped shield and make it trickle onto the cable.

The goal is to keep the soil as close to the protective cover as possible without disturbing its seal with the ground.

NASA's automatic detector InSight has discovered and measured what scientists think is a major earthquake. Image: NASA / JPL-Caltech
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Researchers are learning to distinguish seismic signals

Burying the seismic rope itself is one of the goals of the next phase of the mission, and NASA recently extended the mission by two years to December 2022.

However, although the wind caused the interruption of the InSight seismograph, it still could not effectively help the lander’s solar panels still covered with dust.

Now, when Mars is moving away from the sun, the power is running out, although it is expected that after July, when the planet starts to approach the sun again, the energy level will rise.

Before that, the team will turn off InSight’s instruments one by one so that they can sleep, only wake up regularly to check their own health and send messages back to Earth.

NASA said the team hopes to turn on the seismograph for another month or two before it must be turned off.


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