NASA's InSight lander captures intimate sights and sounds of Mars

December 20, 2018, 10:53 a.m.
NASA's InSight lander image of Mars using Instrument Deployment Camera
Photo: NASA/JPL-Caltech

Welcome to Mars, InSight.

The Mars lander InSight survived its "7 minutes of terror" and successfully touched down on the red planet on Nov. 26. After that drama, the lander got itself up and running, snapping the picture above with its Instrument Deployment Camera (IDC).

The image was shared on NASA's social media channels with a caption from InSight's perspective. "There's a quiet beauty here," someone wrote for the lander. "Looking forward to exploring my new home."

The first photo of Mars taken by the InSight lander wasn't exactly crystal clear. The first photo of Mars taken by the InSight lander wasn't exactly crystal clear. (Photo: NASA/JPL-Caltech)

This wasn't the first image taken by InSight, however; it was just the prettier of the two. Using the Instrument Context Camera, the lander also took a grainy photo of the surface (above), explaining that it hadn't taken the lens cover off but was simply too excited to wait. "My first picture on Mars! My lens cover isn’t off yet," the Facebook caption read, "but I just had to show you a first look at my new home."

'The InSight lander acts like a giant ear'

Following these images, InSight captured its first audio recording on Dec. 1. Two sensors on the lander recorded a low rumble, similar to thunder, that was caused by vibrations in wind blowing 10 to 15 mph. The air-pressure sensor recorded the air vibrations directly, and the seismometer recorded the lander's vibrations when the wind moved across its solar panels.

"The InSight lander acts like a giant ear," said Tom Pike, InSight science team member and sensor designer at Imperial College London. "The solar panels on the lander's sides respond to pressure fluctuations of the wind. It's like InSight is cupping its ears and hearing the Mars wind beating on it. When we looked at the direction of the lander vibrations coming from the solar panels, it matches the expected wind direction at our landing site."

The seismometer will analyze vibrations from Mars' deep interior and will hopefully determine if tremors on the red planet are similar to earthquakes.

"Capturing this audio was an unplanned treat," said Bruce Banerdt, InSight principal investigator at NASA's Jet Propulsion Laboratory. "But one of the things our mission is dedicated to is measuring motion on Mars, and naturally that includes motion caused by sound waves."

'An awesome Christmas present'

NASA InSight seismometer on the surface of Mars A view of InSight's seismometer on the Martian surface on Dec. 19, 2018. (Photo: NASA/JPL-Caltech)

InSight deployed its seismometer on Dec. 19, the first time in history that such an instrument has been placed on the surface of another planet. After verifying that Insight's robotic arm was functioning, NASA engineers commanded the lander to place its seismometer on the ground as far away as the arm can reach — 5.367 feet, or 1.636 meters.

"Seismometer deployment is as important as landing InSight on Mars," Banerdt says in a statement. "The seismometer is the highest-priority instrument on InSight: We need it in order to complete about three-quarters of our science objectives."

After leveling the seismometer from its slightly tilted initial position, engineers will likely need a few weeks to analyze the incoming seismic data, NASA says. But for now, InSight project manager Tom Hoffman is just thankful to have made it this far so quickly.

"InSight's timetable of activities on Mars has gone better than we hoped," Hoffman says. "Getting the seismometer safely on the ground is an awesome Christmas present."

InSight shows off for the camera

NASA InSight first selfie The selfie is made up of 11 images taken by its Instrument Deployment Camera, located on the elbow of its robotic arm. (Photo: NASA/JPL-Caltech)

A few days after reaching Mars, InSight also took its first selfie. The image shows the lander's dock and solar panels plus its weather sensor booms, science instruments and UHF antenna on top of the lander.

InSight — which stands for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport — will stay put, unlike the rovers. In addition to its seismometer, it will also place a heat probe on Mars in early January, all in an effort to gain a better understanding of the planet's interior, including its core. This, it's hoped, will offer some details about how the planets of the inner solar system — Mercury, Venus, Earth and Mars — formed.

InSight's mission is expected to last at least two years.

Editor's note: This article has been updated since it was originally published in November 2018.

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