Connect with us

News

First sounds of wind on Mars captured by NASA’s Insight Lander

Published

on

This fresh in from the Elysium Planitia of Mars: the sound of wind from an alien world. On its 10th day as a new resident of the red planet, NASA’s InSight lander’s pressure sensor transmitted air vibration data from its trembling solar panels, representing a steady breeze about 99 million miles away. The combination of photos sent back from the craft with the sound of Martian wind gives Earth residents a unique moment to feel like they’ve joined the craft themselves. “It’s fun to imagine that I’m there,” mused Don Banfield during a JPL media teleconference discussing the recording. Banfield is InSight’s Auxiliary Payload Sensor Subsystem (APSS) Science Lead.

InSight, short for “Interior Exploration using Seismic Investigations, Geodesy and Heat Transport”, launched aboard an Atlas V rocket on May 5, 2018 and successfully landed on the Martian surface on November 26, 2018. The craft is a seismic investigator sent to study the red planet’s core, eventually drilling 10-16 feet down into its crust to gather geographical data. The craft’s landing event was live streamed online for viewers around the world, greeting Earthlings with a photo of its new home’s surface shortly after. It sent back more photos of the surrounding area prior to the wind recording.

The thin CO2 atmosphere on Mars doesn’t translate high sounds well, so the recorded vibrations from InSight’s pressure sensor are low on the audio spectrum, under 50 Hz, thus difficult to hear. However, after the frequency was increased by a factor of 100 (raised two octaves), it became possible to hear what sounds like a steady wind blowing across the regolith. Dust devils tracked in the area moving across the Martian surface had motion consistent with the wind recordings, thus confirming what was being heard by InSight’s scientists.

A recent photo sent back from InSight as it settles into its Martian habitat. The white dome pictured is covering the craft’s instruments. | Credit: NASA/JPL

The way InSight picks up and translates sound is similar to how a human ear works: Air pressure vibrates the eardrum, then that vibration pattern is sent through the inner ear bones to the cochlea which has tiny hairs translating the vibrations into electrical signals sent to the brain. InSight’s solar panels are like its eardrums, the spacecraft structure itself like its inner ear, its instruments like its cochlear, and its electronic box translating and transmitting signals is like brain. The “sounds” we hear from Mars are translated data from wind-caused vibrations.

Ironically enough, wind noise is actually not a particularly desired outcome from InSight’s instruments. According to the scientists participating in NASA’s teleconference discussing the event, the inlet for the pressure sensor was specifically designed to minimize any chatter from air movement. Also, the placement of InSight’s seismographic gear will be based on the best area to reduce input from the lander’s interaction with the vibrations it’s recording, i.e., the lander’s movement from seismic events. It should be noted, though, the Martian wind gracing our human ears for the first time is only a taste of what’s to come from InSight’s instruments.

Once the wind and thermal shield (the white dome in the photos) has been lifted from the lander in a few weeks, all of InSight’s instruments will be exposed to the Martian environment for data collection. For now, the lander’s Earth-based team is first focusing on understanding the area the craft is in to pick the best place to set its instruments. After the main mission begins, however, a full study of Mars’ atmosphere will be underway and we could hear, among other natural events, the sounds of exploding meteors.

Advertisement
An artist’s depiction of InSight drilling on Mars. | Credit: NASA/JPL-Caltech

While wind may be a unique sound to hear on an alien world, it’s not the first time a NASA craft has entertained our ears and imaginations. Electromagnetic vibrations have been recorded all across our solar system, perhaps the most famous of which originated from the Voyager 1 spacecraft launched in 1977. The data collected from the craft’s radio-capturing instruments has been converted into audio files – you can even find a full album’s worth of the sounds on a variety of streaming sites. Some of the recordings are meditation-worthy, others a touch unnerving. We humans have additionally added some recordings of our own to space via Voyager’s famous “golden record”, the sounds of which are also available for listening online.

If you’re craving a full Martian soundtrack, you’ll be happy to know that NASA’s Mars 2020 rover is planned to provide just that. It will have two microphones on board, one of which will record the actual landing of the rover. Combined with telemetry data and surface photographs, Mars is on its way to its own documentary with inputs completely provided “on-location”. Stay tuned!

Listen to the Martian wind yourself below:

Advertisement

Accidental computer geek, fascinated by most history and the multiplanetary future on its way. Quite keen on the democratization of space. | It's pronounced day-sha, but I answer to almost any variation thereof.

Advertisement
Comments

News

Tesla VP shares key insights on latest Optimus dance demos

Optimus’ dance demonstrations shocked quite a good number of Tesla followers.

Published

on

Credit: Elon Musk/X

A Tesla VP recently shared some key insights about Optimus’ latest dance demonstrations. Tesla showcased Optimus’ dance moves in two demonstrations this week, with its second demo becoming a shock to many.

Optimus Demonstrations

Optimus’ initial demonstration this week featured the humanoid robot performing a number of rhythmic actions. As per Tesla Vice President of Optimus (Tesla Bot) Milan Kovac, the humanoid robot’s movements were trained in simulation. He also explained that the cable, which could be seen attached at the back of Optimus, was simply there in case of a fall.

Interestingly enough, a follow-up video demonstration featuring Optimus performing even more advanced rhythmic movements was posted by CEO Elon Musk on social media platform X on Tuesday. In this demo, Optimus could be seen performing ballet and modern dance moves. Unlike the previous demonstration, Optimus was completely untethered this time around. Elon Musk stated in a follow-up post on X that Optimus should eventually be able to do ballet movements perfectly. 

What the Optimus VP Says

Kovac has provided some key insights on Optimus’ second demonstration for the week. As per the Tesla executive, the movements of the humanoid robot in the video were in real-time. The demonstration was also fully learned in simulation and zero-shot transferred to real without extra training.

“Here’s a little more, and no cables this time. It’s all real-time speed, zero CGI, fully learned in simulation & zero-shot transferred to real. Besides the fact that it’s fun, we had to make significant improvements to our robot model in Sim, domain randomization and other techniques which will directly transfer to more practical situations as well (robust walking, and agile full-body control in general).

Advertisement

“We also learned quite a few things on our hardware and tuned our power profile. I hope it is getting pretty clear that Tesla is much more than an amazing car (!) company: it’s the place to be for transformational real-world AI,” Kovac wrote in his post on X.

Continue Reading

Cybertruck

Tesla Cybertruck police vehicles escort Trump motorcade in Qatar

The two Cybertrucks stood out in the motorcade, thanks to their iconic light bar and their imposing presence.

Published

on

Credit: @RapidResponse47/X

Two Tesla Cybertruck police vehicles accompanied United States President Donald Trump’s motorcade during his visit to Doha, Qatar’s capital, on Wednesday.

The two Tesla Cybertrucks stood out in the motorcade, thanks to their iconic light bar and their imposing presence.

Trump’s Qatar Visit

Qatar is the second of three Middle Eastern countries expected to be visited by Trump this week. So far, Trump has been received warmly, with Qatar providing Air Force One with an eight-fighter jet escort. Saudi Arabia, which hosted Trump and Tesla CEO Elon Musk earlier this week, also provided Air Force One with a six-fighter jet escort.

Qatar seemed determined to roll out the red carpet for the U.S. President, as hinted at by the curated police escort for Trump’s motorcade to the Amiri Diwan in Doha. Tesla CEO Elon Musk seemed excited to see his vehicles being used in the Middle Eastern country, writing “Cybertrucks escorting @POTUS!” on X.

Cybertrucks Police Vehicles in Qatar

Qatar seems to have a soft spot for the Cybertruck, even before Trump’s visit. In late December, social media posts from the country suggested that two Cybertrucks are being used as part of the Internal Security Force’s (Lekhwiya) patrol fleet. The futuristic all-electric pickup trucks have also been spotted in several other areas of the country.

Advertisement

The Qatar Ministry of Interior also posted a video featuring veteran Tesla tuner Unplugged Performance CEO Ben Schaffer, who noted that UP.FIT will be providing modified Cybertrucks for the country. As could be seen in the video, Unplugged Performance and the Ministry of Interior have signed a Letter of Intent to pave the way for UP.FIT Cybertrucks to be made for Qatar.

Continue Reading

News

Elon Musk teases underrated Cybercab and Optimus business

The Cybercab’s design does seem to be tailor-made for a parcel delivery business.

Published

on

Credit: Joe Tegtmeyer/X

Tesla CEO Elon Musk recently responded positively to a rather underrated business idea for the Cybercab and Optimus.

While the Cybercab is designed for autonomous robotaxi services, the self-driving car, together with Optimus, could also operate as a completely different business.

Cybercab Haulers

Musk’s comment came as a response to financial markets researcher @alojoh, who noted in a post on X that the vast majority of Tesla’s Cybercab fleet will likely be inactive at night due to low transportation demand. During these periods, the robotaxis could be used as autonomous delivery vehicles that can be loaded by Optimus. The humanoid robot can even be inside the Caybercab to facilitate deliveries.

Elon Musk’s response was a simple “exactly,” but it does show that Tesla is considering other businesses that could expand the use of its two potential world-changing products. If one were to look at Tesla’s plans for the Cybercab and Optimus, after all, the idea of “dual use” robotaxis seems very feasible.

All The Necessary Parts

The Cybercab’s design does seem to be tailor-made for a parcel delivery business. The Cybercab is a small car and it only features two seats. It does, however, carry an extremely large trunk—quite too large for such a small vehicle, in a way. Tesla engineers previously stated that the space in the Cybercab’s trunk could be enough to fit two full-size carry-ons and two full-size checked bags at once, or even some bicycles. Needless to say, Tesla seems to have designed the Cybercab to be capable of carrying a lot of cargo–something that’s required for a parcel delivery business.

Advertisement

The Optimus robots that Tesla would have to deploy for this secondary business would not be much of an issue either, considering that the company is planning on building the humanoid robot in extremely large numbers. With Tesla producing millions of Optimus robots and Cybercabs every year, the company should be able to allocate enough resources to offer a reliable and safe parcel delivery service as well.

Continue Reading

Trending