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Archivo del Autor: Belen De Leon

Antarctic tests will prepare this rover for a possible trip to an icy ocean moon

Exploring a distant moon usually means trundling around its uniquely inhospitable surface, but on icy ocean moons like Saturn’s Enceladus, it might be better to come at things from the bottom up. This rover soon to be tested in Antarctica could one day roll along the underside of a miles-thick ice crust in the ocean of a strange world.

It is thought that these oceanic moons may be the most likely on which to find signs of life past or present. But exploring them is no easy task.

Little is known about these moons, and the missions we have planned are very much for surveying the surface, not penetrating their deepest secrets. But if we’re ever to know what’s going on under the miles of ice (water or other) we’ll need something that can survive and move around down there.

The Buoyant Rover for Under-Ice Exploration, or BRUIE, is a robotic exploration platform under development at the Jet Propulsion Laboratory in Pasadena. It looks a bit like an industrial-strength hoverboard (remember those?), and as you might guess from its name, it cruises around the ice upside-down by making itself sufficiently buoyant to give its wheels traction.

“We’ve found that life often lives at interfaces, both the sea bottom and the ice-water interface at the top. Most submersibles have a challenging time investigating this area, as ocean currents might cause them to crash, or they would waste too much power maintaining position,” explained BRUIE’s lead engineer, Andy Klesh, in a JPL blog post.

Unlike ordinary submersibles, though, this one would be able to stay in one place and even temporarily shut down while maintaining its position, waking only to take measurements. That could immensely extend its operational duration.

While the San Fernando Valley is a great analog for many dusty, sun-scorched extraterrestrial environments, it doesn’t really have anything like an ice-encrusted ocean to test in. So the team went to Antarctica.

The project has been in development since 2012, and has been tested in Alaska (pictured up top) and the Arctic. But the Antarctic is the ideal place to test extended deployment — ultimately for up to months at a time. Try that where the sea ice retreats to within a few miles of the pole.

Testing of the rover’s potential scientific instruments is also in order, since in a situation where we’re looking for signs of life, accuracy and precision are paramount.

JPL’s techs will be supported by the Australian Antarctic Program, which maintains Casey station, from which the mission will be based.


Source: TechCrunch

'Trump's Notes' Photographer Explains How He Got the Shot

For Getty Images photographer Mark Wilson, it was just another day at the office.
Source: Wired

Adiós violencia, el humor será el nuevo protagonista de los viodejuegos

La enorme popularidad del juego ‘Untitled Goose Game’ reside en que permite que el jugador participe en situaciones cómicas. Esa conexión personal hace que las aventuras del ganso resulten aún más divertidas y podría convertirse en la nueva moda de la industria para dejar de lado las historias de disparos y carreras
Source: MIT

Malas noticias: la revolución del coche eléctrico tardará más de lo previsto

Así lo afirma un nuevo estudio del MIT, que alerta de que la constante reducción de costes de las baterías se va a detener próximamente debido a la imposibilidad de reducir más el precio de sus materiales. Sin embargo, algunos expertos critican que su informe no tiene en cuenta otras mejoras que se avecinan
Source: MIT

Land Rover announces pricing for 2020 Defender 90 First Edition in LA – Roadshow

Despite having two fewer doors, the First Edition 90 is only slightly cheaper than the 110 equivalent.
Source: CNET

Karma's Revero GTS offers higher performance with the same great style – Roadshow

Sure, this stylish plug-in hybrid is pricey, but it looks like a million bucks and is nearly super-car fast.
Source: CNET

SpaceX’s Starship Mk1 fails during testing, next step will be to move to a newer design

SpaceX’s Starship Mk1 prototype encountered an explosive failure during early testing in Texas on Wednesday – you can see exactly what happened in the video below, but basically it blew its lid during cryogenic testing – a standard test that you use to see if the vehicle can hold up to extreme cold temperatures, like those it would encounter in actual use. The good news is that this is exactly why SpaceX (and anyone building rockets) does this kind of early-stage testing on the ground, in controlled, relatively safe conditions. The bad news is that this might delay the company’s optimistic timelines.

As for next steps, the plan appears to be to take what Starship Mk1 has taught SpaceX so far and proceed with the next iteration of the prototype spacecraft – Starship Mk3. ‘Wait, didn’t we skip a Mk?’ you might ask – no, because SpaceX is already building Mk2 in parallel with this now-destroyed Mk1 at its other facility in Florida.

SpaceX CEO Elon Musk was quick to answer a question on Twitter from YouTuber Everyday Astronaut regarding the next steps for Starship testing, saying it’ll move on to Mk3 design, and that Mk1’s value was primarily “as a manufacturing pathfinder,” noting that “flight design is quite different.”

This is still a different version of events and Starship development from what’s been discussed previously: Starship Mk1 and Mk2 were originally characterized as high-altitude test flight vehicles, to follow the success of the ‘Starhopper’ snub-nosed subscale demonstrator, which was used to test a single Raptor engine for a couple of low-altitude hops at SpaceX’s Texas site.

Timelines are always fluid in the space business, however, and in particular in the launch industry. SpaceX also sets incredibly optimistic timelines for most of its ambitious goals, by the open admission of both Musk and SpaceX President and COO Gwynne Shotwell. Still, the company has said it’ll look to achieve orbital flight with a Starship prototype vehicle as early as next year, so we’ll have to wait and see whether this inopportune test result affects that schedule.


Source: TechCrunch

Scientist claims to spot insects on Mars, but I think they're just rocks – CNET

An entomologist believes he found evidence of alien life on the Red Planet. I’m not buying it.
Source: CNET

Iranian Americans Struggle to Reach Family Amid Internet Blackout

As Iran’s countrywide internet shutdown approaches a full week, Iranian Americans are increasingly desperate to connect with friends and relatives.
Source: Wired

Sonos acquires voice assistant startup Snips, potentially to build out on-device voice control

Sonos revealed during its quarterly earnings report that it has acquired voice assistant startup Snips in a $37 million cash deal, Variety reported on Wednesday. Snips, which had been developing dedicated smart device assistants that can operate primarily locally, instead of relying on consistently round-tripping voice data to the cloud, could help Sonos set up a voice control option for its customers that has “privacy in mind” and is focused more narrowly on music control than on being a general-purpose smart assistant.

Sonos has worked with both Amazon and Google and their voice assistants, providing support for either on their more recent products, including the Sonos Beam and Sonos One smart speakers. Both of these require an active cloud connection to work, however, and have received scrutiny from consumers and consumer protection groups recently for how they handle the data they collect form users. They’ve introduced additional controls to help users navigate their own data sharing, but Sonos CEO Patrick Spence noted that one of the things the company can do in building its own voice features is developing them “with privacy in mind” in an interview with Variety.

Notably, Sonos has introduced a version of its Sonos One that leave out the microphone hardware altogether – the Sonos One SL introduced earlier this fall. The fact that they saw opportunity in a mic-less second version of the Sonos One suggests it’s likely there are a decent number of customers who like the option of a product that’s not round-tripping any information with a remote server. Spence also seemed quick to point out that Sonos wouldn’t seek to compete with its voice assistant partners, however, since anything they build will be focused much more specifically on music.

You can imagine how local machine learning would be able to handle commands like skipping, pausing playback and adjusting volume (and maybe even more advanced feature like playing back a saved playlist), without having to connect to any kind of cloud service. It seems like what Spence envisions is something like that which can provide basic controls, while still allowing the option for a customer to enable one of the more full-featured voice assistants depending on their preference.

Meanwhile, partnerships continue to prove lucrative for Sonos: Its team-up with Ikea resulted in 30,000 speakers sold on launch day, the company also shared alongside its earnings. That’s a lot to move in one day, especially in this category.


Source: TechCrunch

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