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Spring-loaded Robot Could Explore the Asteroid Belt Almost Indefinitely

The asteroid belt beckons – it incorporates sufficient sources for people to increase into the whole remainder of the photo voltaic system and has no biosphere to talk of. Basically, it’s a large mine simply ready to be exploited. So, a scholar workforce from the College of Texas at Austin has devised a plan to use it as a part of the Revolutionary Aerospace System Ideas – Educational Linkage (RASC-AL), a contest sponsored by NASA to encourage undergraduate and graduate college students to develop modern concepts to unravel a few of area exploration’s challenges. UT Austin’s submission to the competitors final yr, often known as the Autonomous Exploration By Extraterrestrial Areas (AETHER) undertaking, definitely matches that invoice.
AETHER was submitted to the AI-Powered Self-Replicating Probes sub-section of RASC-AL 2024, which solicited concepts that might advance John von Neumann’s thought of a self-replicating area probe. AETHER addresses these challenges in two distinct methods.
First, it combines a spring-loaded touchdown system and a metal-burning rocket engine to hop between totally different asteroids within the belt. To gasoline its rocket, it makes use of a system to reap water and metallic (particularly aluminum) from the floor of the asteroid it’s at the moment on, splits it into its parts, after which dumps them right into a gasoline tank that can be utilized to energy its subsequent journey to a unique asteroid. All of that is powered by a Kilowatt Reactor Utilizing Stirling TechnoloY (KRUSTY) nuclear reactor that has been present process NASA and DoE testing for over a decade.
The springs in AETHER’s legs have a two-fold goal. First, they permit for a tender touchdown on the floor of the gravitationally weak asteroid and might switch a number of the vitality created by that touchdown into saved vitality, which can be utilized to launch the system from its touchdown place later. It additionally has a set of wheels to navigate across the asteroid’s floor. When it’s time to leap off once more, it replants its legs and is derived again into area – with slightly assist from its rocket engine.
The rocket engine designed as a part of AETHER can burn metallic, corresponding to aluminum, that the craft harvests from the asteroid to make use of as gasoline. It’s the major system designed to take the craft from asteroid to asteroid, and it’s meant to be a high-delta-v choice for doing so rapidly.
AETHER additionally tries to imitate a von Neumann probe by utilizing a machine-learning algorithm to enhance its resource-harvesting efforts. It could take knowledge from varied sensors, together with artificial aperture radar and a spectrometer, and estimate the place the perfect spot could be to land to refuel. Whereas accumulating that extra gasoline materials, it will talk again with Earth by way of a high-speed optical communication hyperlink, permitting an Earth-based server to replace the machine studying parameters and enhance the algorithm’s consequence for the following hop.
Credit score – HeroX YouTuBe Channel
The unique mission design for AETHER has it stopping at two particular asteroids earlier than shifting on to as-yet-unnamed ones. The primary, which might be no shock, is Psyche, the large metallic asteroid that’s about to be visited by its personal devoted probe. Information from that probe will assist inform the primary iteration of AETHER’s studying algorithm, and the enter the sensors present from its go to will replace it earlier than its subsequent step – Themis. That asteroid, although smaller, is predicted to comprise a considerable amount of water ice, which is a mandatory element for AETHER’s rocket engines.
After visiting the primary two asteroids, the mission strikes on to locations unknown, as finishing these steps could be thought of a hit. However given the longevity of the KRUSTY reactor and the craft’s capability to refill its personal gasoline tank, it’s potential, and even possible, that AETHER would contemplate working effectively previous its rendezvous with Themis.
The UT Austin workforce was comprised solely of undergraduate college students, although it’s unclear what yr of research they had been in. However, given their expertise with the 2024 model of RASC-AL, they would appear well-placed to submit a undertaking proposal for the just lately introduced 2025 model. In the event that they do, hopefully, their thought shall be simply as modern as AETHER’s.
Be taught Extra:
Flores et al – AETHER
UT – Miniaturized Jumping Robots Could Study An Asteroid’s Gravity
UT – NASA Funds the Development of a Nuclear Reactor on the Moon That Would Last for 10 Years
UT – Engineers Design a Robot That Can Stick To, Crawl Along, and Sail Around Rubble Pile Asteroids
Lead Picture:
Touchdown and take-off depiction of AETHER.
Credit score – Flores et al.
News
L.A. approves first permits for rebuilding homes after Palisades fire

The town of Los Angeles has cleared the best way for 3 Pacific Palisades householders to start rebuilding on their properties.
The approval of the tasks, one to restore a broken residence and two for full rebuilds, in response to the Division of Constructing and Security, represents a key milestone within the restoration from January’s devastating wildfires. The primary allow was issued March 5, lower than two months after the Palisades fireplace destroyed or majorly broken greater than 6,000 properties in Pacific Palisades and surrounding areas.
“We wish this to be occurring in your lot, too,” mentioned Mayor Karen Bass at a information convention within the Palisades on Friday.
Bass and L.A. County leaders have pledged to streamline allowing procedures for property homeowners who need to rebuild. The Eaton fireplace, which ignited the identical day, displaced 6,900 households from Altadena and close by communities. The town and county have opened one-stop permitting centers for fireplace victims and waived discretionary hearings and different zoning critiques for many who need to construct new properties which are roughly the identical dimension as they have been earlier than.
The primary allow accepted was for repairs to a fire-damaged main bed room, rest room and storage of a split-level residence close to Rustic Canyon, in response to metropolis information and Paul Lobana, the structural engineer for the venture. The house owner submitted plans to metropolis inspectors Feb. 17.
“The method labored excellently,” mentioned Lobana, who has been engaged on properties in Los Angeles for 40 years. “The town was very courteous.”
Development has already begun on the repairs, Lobana mentioned.
Gary Lionelli, his spouse and teenage daughter have been dwelling in a newly constructed residence close to the Palisades’ major business strip for lower than a yr earlier than the fireplace destroyed it. The longtime property homeowners determined to submit the precise blueprints as earlier than.
“We’re not going to do something that will delay us,” mentioned Lionelli, a movie composer.
With town approval in hand, Lionelli mentioned he hoped to start development as soon as particles clearing was completed on his property. He needed to beat an anticipated rush of rebuilds and competitors for labor and supplies.
“My contractor mentioned, you guys ought to simply go whereas the gettin’s good as a result of we don’t know what’s going to occur six months from now with everybody getting their plans accepted,” Lionelli mentioned.
Lionelli mentioned that the earlier teardown and rebuild of his residence took greater than three years and confronted quite a few delays. He mentioned he was happy the brand new allow got here rapidly however in any other case isn’t passionate about going by the method one other time.
“To wrap my head round constructing this home once more after we simply did it, will not be one thing I need to do,” Lionelli mentioned. “The primary time I used to be very arms on. This time it’s going to be, ‘Wake me up when it’s over.’ ”
The Occasions was unable to succeed in the proprietor or representatives of the third property to obtain a allow, a full rebuild of a house on bluffs overlooking Pacific Coast Freeway.
As of final week, 72 property homeowners had submitted rebuilding functions to town. An extra 98 property homeowners submitted blueprints to the L.A. County Division of Public Works for rebuilding in unincorporated areas — 76 within the Eaton fireplace zone and 22 within the Palisades fireplace space. The county will not be approving plans till all particles clearing is full on the property, mentioned Celeste Hampton, a division spokesperson.
State and native officers are still determining rebuilding rules, together with if there will likely be any modifications to constructing codes to incentivize or require extra fire-resistant supplies which may have an effect on future allow approvals.
This week, Bass updated an existing executive order clarifying that new accent dwelling items would qualify for streamlined allowing and issued one other order with plans to additional expedite critiques for householders who select to rebuild with all-electric methods and home equipment.
“Wildfires aren’t going away,” mentioned Bass. “And climate-fueled disasters aren’t going away, both.”
Kurt Krueger, the architect dealing with Lionelli’s rebuilding venture, mentioned he’s advising his purchasers to not wait earlier than submitting functions to native authorities to allow them to get accepted extra rapidly. He mentioned that metropolis reviewers have been affordable of their requests to fireplace victims, however the lack of readability on the laws does current a danger.
“It makes it arduous for householders as a result of they need to get going however don’t need to make the incorrect choice,” Krueger mentioned.
Bass mentioned at Friday’s information convention that there are greater than 1,000 property homeowners who haven’t opted in or out of the federal authorities’s free particles removing service. House owners might face liens in the event that they don’t clear their properties, Bass mentioned.
Residents have 10 days to fill out the fitting of entry kind on L.A. County’s web site.

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How ‘Severance’ Uses Old Tricks to Make Its Office Hell

Accommodates spoilers about previous episodes however not the Season 2 finale.
In “Severance,” the Apple TV+ collection a few shadowy firm the place some staff have their consciousness break up into two components, with the “innie” doing all of the work and the “outie” remembering none of it, the workplace is sparse and lifeless.
The present reinforces that theme with its cinematography and manufacturing design. Listed below are a number of the methods “Severance” invokes and inverts traditional movie methods to create its company hell.
Isolation
Repetition Removes Individuality
From the earliest days of transferring photos, filmmakers have used the inflexible geometry of desks and cubicles and dense repetition to create photos of individuals collectively, but remoted, trapped and stripped of identification by company bosses.
Movies like “The Condo,” from 1960 (beneath, high left), and even Pixar’s 2004 animated film “The Incredibles” (high proper) use these repetitive pictures to counsel a company mass that takes away particular person identities to as a substitute create “firm males,” mentioned Jill Levinson, a professor at Babson School and the writer of “The American Success Fantasy on Movie.”
Grids fill the display screen in these films and others, together with in pictures of the oppressive name middle of the 2018 satire “Sorry to Hassle You” (above left) and the lifeless company flooring of Mattel in “Barbie,” from 2023 (above proper), making a claustrophobic sense of confinement.
One of many earliest examples of this picture on movie got here in King Vidor’s 1928 silent film “The Crowd”:
In Jacques Tati’s “Playtime,” from 1967, Tati’s recurring character, Monsieur Hulot, finds himself out of sync with the impersonal settings of midcentury Paris:
“Severance” makes use of a number of the identical strategy. The Lumon Industries workplace was impressed by the workplaces of the Sixties, Jeremy Hindle, the present’s manufacturing designer, informed the architecture magazine Dezeen. Again then most workplaces have been very clearly locations to work, making a strict separation between workplace and home life, he mentioned. “I discover workplaces now form of ‘pretend’ workplaces — they’re home-ish.”
The opening sequence modifies the multitudinous workplace shot to mirror the present’s splintering identities, with a grid of desks that has the identical employee in each cubicle: the innie Mark S, performed by Adam Scott:
In different methods, Levinson mentioned, “Severance” bucks office-film conference. As a substitute of leaning on multiples, it mostly isolates its employees in unnervingly massive rooms.
The idea of confinement is central to “Severance.” Whereas many characters chafe towards the bounds of their roles in life, for the innies the imprisonment is literal: They’re successfully trapped on the severed flooring, solely perceiving life within the office.
The sense of restriction is strengthened by the low ceilings in “Severance,” together with within the hallways and the workplaces themselves, Levinson famous. Low ceilings lure characters and are helpful instruments notably in horror films, like within the claustrophobic company spaceship in “Alien” (1979) or the tight architecture of the Overlook Hotel in “The Shining” (1980).
The corridors in “Severance” recall an excessive instance of low workplace ceilings: the 7 ½ flooring in “Being John Malkovich,” the place staff need to bodily hunch over as they exit the elevator:
The work itself will also be the cage. In a single scene within the first season of “Severance,” Dylan G.’s (Zach Cherry) display screen resembles a shot from the 1999 film “American Magnificence,” with each characters their reflections trapped behind the work on their screens:
If the areas or the work itself kind the prisons of workplace life, the wardens are the clocks. Pictures of them are one other visible trope in office films, one which calls again to the symbolic clocks in old German Expressionist films: Staff repeatedly look on the time, ready to be free. (Levinson exhibits her college students a montage of comparable pictures throughout many years.)
It occurs within the 2002 film “About Schmidt,” as Jack Nicholson, as a retiring insurance coverage man, stares on the clock ready for his remaining day of labor to finish …
… and within the aptly titled 1997 comedy “Clockwatchers,” about 4 younger girls working in a soul-sucking workplace:
As a result of innies exist solely on the severed flooring, there’s little motive for one to stay up for heading residence. Within the second season, when Mark S. seems to be on the clock because the workday winds down, it’s a signal that dangerous reintegration surgical procedure to mix his severed halves is beginning to work.
In “Severance,” the managers on the severed flooring exert quiet company energy from behind the desks of their personal workplaces. Severed employees stand earlier than the seated supervisor, ready to talk as in a royal courtroom.
The filmmakers Joel and Ethan Coen typically use that image of “the man behind the desk” of their movies, together with, clockwise from high left, “The Huge Lebowski,” “The Hudsucker Proxy,” “Fargo” and “Barton Fink.” The boss’s desk is a barrier between the protagonist and actual energy:
Staff’ desks are, in contrast, susceptible. Their cubicles make them straightforward targets for bosses “simply swinging by,” like within the 1999 office malaise film “Workplace Area” …
… or the lodging could possibly be absurdly ineffective, as within the 1985 sci-fi black comedy “Brazil.” One desk is split by a wall and break up between two staff who should play tug of struggle for the work floor:
The boss’s desk and its energy are constant, even when the particular person behind it isn’t. Between the 2 seasons of “Severance,” the supervisor Concord Cobel (Patricia Arquette) is changed by her subordinate Seth Milchick (Tramell Tillman); he takes her place each on the desk and in the identical pictures she occupied.
In “Severance,” the workplace elevator is a web site of transformation between a severed employee’s two identities. Because it nears the severed flooring, the elevator acts as a breaker swap between the innie and outie identification, with the innies waking up on the workplace flooring, locked away from the surface world.
Within the 1957 drama “A Face within the Crowd,” the primary character’s fall from grace is made literal as he goes down the community tv firm’s elevator, watching the buttons tick to decrease flooring:
In contrast in “The Hudsucker Proxy,” the inventor turned government performed by Tim Robbins is crammed into the again of an elevator till the operator realizes he’s vital and goes express to the top floor. The doorways shut behind him as he seems to be uneasy together with his ascent:
The opposite pivotal elevator in “Severance” is on the finish of a pitch black hall. It goes to the mysterious testing flooring, and it haunts one character a lot that he repeatedly paints it in gobs of black oil paint with out understanding what it’s. That elevator is all descent.
Compelled Enjoyable
Infantilizing Perks
Lumon Industries emphasizes its office perks for innies, which create transient spots of colour throughout the workplace’s in any other case drab environs. In “Severance,” staff attempt for melon bars, finger traps and Music Dance Experiences as rewards for his or her laborious work, supposed morale boosts which are infantilizing and in the end — and laughably — ineffective.
Different exhibits, like “Silicon Valley” and “Broad City,” have additionally memorably used moments of compelled enjoyable to emphasise the awkward sterility of workplace life:
In “The Workplace,” a tragic celebration includes a miserable fruit tray …
… a forebear of the various melon-based functions in “Severance.”
“Workplace Area” contains an excellent sadder birthday scene, wherein the downtrodden worker Milton is handed over for a slice like probably the most unpopular child at a celebration:
It’s a deeply uncomfortable second for Milton, however is it any extra awkward than different petty office slights? It’s one more workplace indignity most employees want to neglect, the type that “Severance” visually aggregates with a purpose to construct its humiliating hell for innies — and spare the outies.
All of it could make severed life appear not so dangerous.
Photograph credit: Apple TV+; United Artists; Disney/Pixar; Annapurna Photos; Warner Bros.; Metro-Goldwyn-Mayer; Criterion Assortment; Common Photos; DreamWorks Photos; New Line Cinema; Goldcrest Movies Worldwide; Gramercy Photos; twentieth Century Fox; HBO; Comedy Central
Produced by Rebecca Lieberman and Tala Safie

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London’s Heathrow Airport closed Friday due to “significant power outage” from nearby fire

London’s Heathrow Airport — one of many world’s busiest — introduced it was closed Friday due to a “important energy outage” from a close-by hearth.
“On account of a hearth at {an electrical} substation supplying the airport, Heathrow is experiencing a major energy outage,” it stated in a post on X. “To take care of the security of our passengers and colleagues, Heathrow will probably be closed till (11:59 p.m. Friday native time). Passengers are suggested to not journey to the airport and will contact their airline for additional data. We apologise for the inconvenience.”
Monitoring providers confirmed flights being diverted to London’s Gatwick Airport, Charles de Gaulle Airport in Paris and Eire’s Shannon Airport.
FlightRadar 24 stated a minimum of 1,350 flights into and out of Heathrow had been affected, together with a number of from the U.S. that had been canceled.
Britain’s Nationwide Rail service cancelled service to and from Heathrow for the day.
The London Hearth Brigade said 10 hearth engines and round 70 firefighters had been tackling the blaze at a substation close to the airport within the west London city of Hayes. Its trigger wasn’t instantly identified. It began late Thursday night time.
“This will probably be a protracted incident, with crews remaining on scene all through the night time,” the brigade stated.
The fireplace was “producing a major quantity of smoke. Please preserve your home windows and doorways closed and keep away from the world the place doable,” the brigade urged.
The ability outage was “affecting numerous properties and native companies, and we’re working carefully with our companions to minimise disruption,” Assistant Commissioner Pat Goulbourne stated in a statement during which he described the fireplace as “extremely seen and important.”
Goulbourne stated firefighters had led 29 folks to security from close by properties, and round 150 folks evacuated.
Scottish and Southern Electrical energy Networks stated in a publish on X that the facility outage affected greater than 16,300 properties, in line with The Related Press.
The latest numbers from journey knowledge supplier OAG Aviation present Heathrow is the fifth busiest airport on the earth.
It’s Britain’s busiest.
The Related Press contributed to this report.

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