Spaceflight Insider
Theresa Cross
August 2nd, 2021
NASA’s InSight lander deployed its Wind and Thermal Shield on sol 66 Feb. 2, 2019. The shield covers the lander’s seismometer, which was set down onto the Martian surface on Dec. 19, 2018. Over 2.5 years later, data from the seismometer have shown Mars’ center to be molten. Credit: NASA/JPL-Caltech
Using data collected by NASA’s Mars InSight lander, which has been on the red planet since 2018, researchers have confirmed the planet’s center to be molten.
This comes from three papers published in “Science” on July 22, 2021, that used data collected by InSight’s seismometer to provide details previously unknown about the composition of Mars’ crust, mantel and core, confirming the planet has a molten center, whereas Earth’s outer core is molten and its center is solid.
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ExtremeTech
NASA’s InSight Lander Detects Major Marsquakes By Ryan Whitwam on April 5, 2021 at 7:14 am
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Mars is shaking, and we’d never know were it not for the trailblazing InSight lander. This mission touched down on the red planet in 2018, making history by deploying the first and only seismometer on another planet. NASA has been listening for rumbles ever since, and it just heard some big ones.
NASA reports that InSight detected two strong quakes, originating in a region with enormous surface fissures called Cerberus Fossae. The quakes had magnitudes of 3.3 and 3.1, similar to a pair of previous quakes from the same area of the planet that clocked in at 3.6 and 3.5. InSight has recorded hundreds of seismic events on Mars with its Seismic Experiment for Interior Structure (SEIS) package, but these are the most significant.
U.S.A. –-(AmmoLand.com)- “The Mute” is a new silencer built, we’re told,
without baffles, of a non-metallic aerospace polymer using custom-designed and -built machines for what is described as an “advanced form print 3D print” process. It is
not a traditional 3D printer, but apparently, it shares many similarities to them. The polymer isn’t for traditional 3D printers either, but a likeness is there too.
Interestingly, the advantages propounded by the manufacturer focus as much on heat reduction as they do noise reduction. If true as described, and consistent, that could be a big selling point. And because it (reportedly) works directly with an included flash hider, it may find adherents among those who strongly prefer a QD design usable across multiple platforms.