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Mars, we hear you! NASA detects tremor on red planet

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By Sharon Marris, news reporter

A NASA Martian rover has recorded what is thought to be a "Marsquake" – a tremor on the mysterious red planet.

The quake monitor attached to the robotic probe InSight recorded the faint rumbling sound almost five months after it arrived on the planet's surface.

Although the recording was made earlier this month, it was released by NASA on Tuesday.

Scientists at NASA's Jet Propulsion Lab in California are still examining the sound to learn more.

But so far they have concluded that it comes from within the planet, as opposed to being caused by outside forces such as wind.

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The tremor – described by NASA as "quiet but distinct shaking" – was so faint, however, that if one of the same magnitude had happened in California, it would barely have been noticed.

Like the Moon, Mars does not have tectonic plates but both planets experience tremors caused by the process of cooling and contraction, which creates stress.

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This means that the surfaces of the Moon and Mars are much quieter than Earth, which is constantly quivering due to seismic noise from the oceans and the weather.

Scientists are also looking at three weaker signals recorded by InSight's seismometer – on 14 March, 10 April and 11 April – although they said these were so small that they are unlikely to have been Marsquakes.

Image: The seismometer (inside the white domed shield) is attached to InSight. Pic: NASA/JPL-Caltech

We have already seen evidence of tremors on the Moon – thousands of quakes were detected between 1969 and 1977 by five seismometers left on the lunar surface by NASA's Apollo missions.

InSight principal investigator Bruce Banerdt said: "InSight's first readings carry on the science that began with NASA's Apollo missions.

"We've been collecting background noisRead More – Source

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Tech

Mars, we hear you! NASA detects tremor on red planet

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Easy Plugin for AdSense.

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By Sharon Marris, news reporter

A NASA Martian rover has recorded what is thought to be a "Marsquake" – a tremor on the mysterious red planet.

The quake monitor attached to the robotic probe InSight recorded the faint rumbling sound almost five months after it arrived on the planet's surface.

Although the recording was made earlier this month, it was released by NASA on Tuesday.

Scientists at NASA's Jet Propulsion Lab in California are still examining the sound to learn more.

But so far they have concluded that it comes from within the planet, as opposed to being caused by outside forces such as wind.

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The tremor – described by NASA as "quiet but distinct shaking" – was so faint, however, that if one of the same magnitude had happened in California, it would barely have been noticed.

Like the Moon, Mars does not have tectonic plates but both planets experience tremors caused by the process of cooling and contraction, which creates stress.

More from Mars

This means that the surfaces of the Moon and Mars are much quieter than Earth, which is constantly quivering due to seismic noise from the oceans and the weather.

Scientists are also looking at three weaker signals recorded by InSight's seismometer – on 14 March, 10 April and 11 April – although they said these were so small that they are unlikely to have been Marsquakes.

Image: The seismometer (inside the white domed shield) is attached to InSight. Pic: NASA/JPL-Caltech

We have already seen evidence of tremors on the Moon – thousands of quakes were detected between 1969 and 1977 by five seismometers left on the lunar surface by NASA's Apollo missions.

InSight principal investigator Bruce Banerdt said: "InSight's first readings carry on the science that began with NASA's Apollo missions.

"We've been collecting background noisRead More – Source

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