Enlarge / Transmission electron micrograph of poliovirus type 1. (credit: Getty | BSIP)

Health officials in New York have once again detected poliovirus in wastewater from Rockland County, where a case of paralytic polio occurred last summer.

Wastewater samples from Rockland and several nearby counties were positive for poliovirus for months after the initial case was reported in July, suggesting widespread circulation of the virus in the region.

So far this year, officials have only detected poliovirus in one sample, which was collected from Rockland in February. Two samples from the county taken during March were negative. Before the detection in February, the last positive sample from the region was found in mid-December in Orange County, just north of Rockland. The last positive detection in Rockland was in October.

Enlarge / An illustration of what the inner portion of the TRAPPIST-1 system might look like. (credit: NASA, ESA, CSA, J. Olmsted (STScI), T. P. Greene (NASA Ames), T. Bell (BAERI), E. Ducrot (CEA), P. Lagage (CEA))

At this point, we've discovered lots of exoplanets that fall under the general label "Earth-like." They're rocky, and many orbit at distances from their host stars to potentially have moderate temperatures. But "like" is doing a lot of work there. In many cases, we have no idea whether they even have an atmosphere, and the greenhouse effect means that the atmosphere can have a huge impact on the planet's temperature. So the Earth-like category can include dry, baking hellscapes like Venus with its massive atmosphere, as well as dry, frozen tundras with sparse atmospheres like Mars.

But we're slowly getting the chance to image the atmospheres of rocky exoplanets. And today, researchers are releasing the results of turning the Webb Space Telescope on a rocky planet orbiting a nearby star, showing that the new hardware is so sensitive that it can detect the star blocking out light originating from the planet. The results suggest that the planet has very little atmosphere and is mostly radiating away heat from being baked by its nearby star.

The ultra-cool dwarf and its seven planets

TRAPPIST-1 is a small, reddish star—in astronomical terminology, it's an "ultra-cool dwarf"—that's about 40 light-years from Earth. While the star itself is pretty nondescript, it's notable for having lots of planets, with seven in total having been identified so far. All of these are small, rocky bodies, much like the ones that occupy the inner portion of our Solar System. While the star emits very little light, the planets are all packed in closer to it than Mercury is to the Sun.

Enlarge / The emergency escape system is seen firing on the New Shepard spacecraft Monday morning after its rocket was lost. (credit: Blue Origin)

A little more than six months after the failure of its New Shepard rocket, Blue Origin has published a summary of the findings made by its accident investigation team.

For a private company flying a private launch system, the analysis of this "NS-23" mission is reasonably detailed. Essentially, the rocket's main engine nozzle sustained temperatures that were higher than anticipated, leading to an explosion of the rocket.

The accident occurred at 1 minute and 4 seconds into a research flight that launched on September 12, 2022. The emergency escape system performed as intended, rapidly pulling the spacecraft away from the disintegrating rocket. Had a crew been on board this flight, they would have experienced a significant jolt and some high gravitational forces before landing safely in the West Texas desert.

Enlarge (credit: Kevin Gill (CC BY 2.0))

In 1960, visionary physicist Freeman Dyson proposed that an advanced alien civilization would someday quit fooling around with kindergarten-level stuff like wind turbines and nuclear reactors and finally go big, completely enclosing their home star to capture as much solar energy as they possibly could. They would then go on to use that enormous amount of energy to mine bitcoin, make funny videos on social media, delve into the deepest mysteries of the Universe, and enjoy the bounties of their energy-rich civilization.

But what if the alien civilization was… us? What if we decided to build a Dyson sphere around our sun? Could we do it? How much energy would it cost us to rearrange our solar system, and how long would it take to get our investment back? Before we put too much thought into whether humanity is capable of this amazing feat, even theoretically, we should decide if it’s worth the effort. Can we actually achieve a net gain in energy by building a Dyson sphere?

Spherical Dyson cows

I’ll state from the outset that I'm a theoretical cosmologist, not an engineer. I have absolutely no idea how to go about building a bridge, let alone a structure that reshapes the very face of our Solar System. But I’m willing to bet that nobody knows how to engage in these kinds of mega-engineering challenges. We can’t say for certain what kind of advances in which technologies would be necessary to build a structure that even partially encloses the sun. To speculate on that would be science fiction—fun, but not very meaty.

Enlarge / Recycling is sorted at the Sims Municipal Recycling Facility in New York City in 2015. (credit: Spencer Platt/Getty Images)

To jumpstart a paltry market for recycled plastic, governments across the globe are pushing companies to include recycled materials in their products. Last year, the United Kingdom introduced a tax on manufacturers that produce or import plastic packaging containing less than 30 percent recycled plastic. In 2024, New Jersey will begin enforcing similar rules, albeit with lower targets. California now requires that beverage containers be made of 15 percent recycled materials, and Washington will enact a similar requirement later this year. The European Commission, Canada, and Mexico are all considering comparable moves.

Currently, most plastic products are derived from freshly extracted fossil fuels, including crude oil and natural gas. Incorporating some recycled plastic could reduce emissions, and shrink pollution in waterways and landfills, experts say. But collecting, sorting, pulverizing, and melting post-consumer plastics for reuse is expensive. The new laws will potentially help recyclers find buyers for what would otherwise become waste.

But regulators may need a better way to verify that the new laws are working. While companies can enlist a third-party to certify their use of recycled content, most certifiers take a bird’s-eye view, tracking the materials across a range of products and factories. As a result, an item with a “recycled content” label might be completely devoid of recycled content.

Enlarge (credit: Walter Zerla via Getty Images)

Say you are a maker of computer graphics cards, under pressure from investors questioning your green credentials. You know what to do. You email your various departments, asking them to tally up their carbon emissions and the energy they consume. Simple enough. You write a report pledging a more sustainable future, in which your trucks are electrified and solar panels adorn your offices.

Good start, your investors say. But what about the mines that produced the tantalum or palladium in your transistors? Or the silicon wafers that arrived via a lengthy supply chain? And what of when your product is shipped to customers, who install it in a laptop or run it 24/7 inside a data center to train an AI model like GPT-4 (or 5)? Eventually it will be discarded as trash or recycled. Chase down every ton of carbon and the emissions a company creates are many times times higher than it first seemed.

Enlarge / If this road is your only route to the outside world, it might not matter that your house didn't flood. (credit: Maurice Alcorn / EyeEm)

Climate change produces lots of risks that are difficult to predict. While it will make some events—heatwaves, droughts, extreme storms, etc.—more probable, all of those events depend heavily on year-to-year variation in the weather. So, while the odds may go up, it's impossible to know when one of these events will strike a given location.

In contrast, sea level rise seems far simpler. While there's still uncertainty about just how quickly ocean levels will rise, other aspects seem pretty predictable. Given a predicted rate of sea level rise, it's easy to tell when a site will start ending up underwater. And that sort of analysis has been done for various regions.

But having a property above water won't be much good if flooding nearby means you can't get to a hospital or grocery store when you need to or lose access to electricity or other services. It's entirely possible for rising seas to leave a property high, dry, but uninhabitable as rising seas cut connections to essential services. A group of researchers has analyzed the risk of isolation driven by sea level rise, and shows it's a major contributor to the future risks the US faces.

Enlarge (credit: Getty | UniversalImagesGroup)

Two more people have died and more details of horrifying eye infections are emerging in a nationwide outbreak linked to recalled eye drops from EzriCare and Delsam.

The death toll now stands at three, according to an outbreak update this week from the Centers for Disease Control and Prevention. A total of 68 people in 16 states have been infected with a rare, extensively drug-resistant Pseudomonas aeruginosa strain linked to the eye drops. In addition to the deaths, eight people have reported vision loss and four have had their eyeballs surgically removed (enucleation).

In a case report published this week in JAMA Ophthalmology, eye doctors at the Bascom Palmer Eye Institute, part of the University of Miami Health System, reported details of one case linked to the outbreak—a case in a 72-year-old man who has an ongoing infection in his right eye with vision loss, despite weeks of treatment with multiple antibiotics. When the man first sought treatment he reported pain in his right eye, which only had the ability to detect motion at the point, while his left eye had 20/20 vision. Doctors noted that the white of his right eye was entirely red and white blood cells had visibly pooled on his cornea and in the front inner chamber of his eye.

Enlarge / Event display of a W-boson candidate decaying into a muon and a muon neutrino inside the ATLAS experiment. The blue line shows the reconstructed track of the muon, and the red arrow denotes the energy of the undetected muon neutrino. (credit: ATLAS Collaboration/CERN)

It's often said in science that extraordinary claims require extraordinary evidence. Recent measurements of the mass of the elementary particle known as the W boson provide a useful case study as to why. Last year, Fermilab physicists caused a stir when they reported a W boson mass measurement that deviated rather significantly from theoretical predictions of the so-called Standard Model of Particle Physics—a tantalizing hint of new physics. Others advised caution, since the measurement contradicted prior measurements.

That caution appears to have been warranted. The ATLAS collaboration at CERN's Large Hadron Collider (LHC) has announced a new, improved analysis of their own W boson data and found the measured value for its mass was still consistent with Standard Model. Caveat: it's a preliminary result. But it lessens the likelihood of Fermilab's 2022 measurement being correct.

"The W mass measurement is among the most challenging precision measurements performed at hadron colliders," said ATLAS spokesperson Andreas Hoecker. "It requires extremely accurate calibration of the measured particle energies and momenta, and a careful assessment and excellent control of modeling uncertainties. This updated result from ATLAS provides a stringent test, and confirms the consistency of our theoretical understanding of electroweak interactions.”

Enlarge / Magnified view of Vibrio vulnificus bacteria. (credit: Smith Collection/Gado via Getty Images)

Cases of a potentially fatal infection from a seawater-borne pathogen have increased off the US Atlantic coast as ocean waters warmed over the last 30 years and are expected to rise further in future because of climate change, according to a study published on Thursday by Scientific Reports, an open-access journal for research on the natural sciences and other topics.

The incidence of infections from Vibrio vulnificus, a pathogen that thrives in shallow, brackish water, was eight times greater in the Eastern US in 2018 than it was in 1988, and its range shifted northward to areas where waters were previously too cold to support it, according to the paper, “Climate Warming and Increasing Vibrio Vulnificus Infections in North America,” by academic researchers in the US, England, and Spain.

By the middle of the 21^st century, the pathogen is expected to become more common in major population centers, including New York City, and by the end of the century, infections may be present in every US Atlantic coast state if carbon emissions follow a medium- to high-level trajectory, the report said.

Enlarge / United Launch Alliance's Vulcan rocket, without its payload, rolls to the launch pad for tests on March 9, 2023. (credit: United Launch Alliance)

The long-awaited debut of a winged space plane will have to wait a little longer. This week NASA updated its internal schedule to show that Sierra Space's Dream Chaser spacecraft will now dock to the International Space Station no earlier than December 17, 2023.

Previously, Sierra Space had been publicly targeting a launch of Dream Chaser in August, on board United Launch Alliance's new Vulcan rocket.

In a statement to Ars, Sierra Space confirmed the delay. "Sierra Space’s plan is to complete the first launch of Dream Chaser by the end of the 4th quarter this year," the company said.

Enlarge / The Terran 1 rocket sure cleans up nice. (credit: Relativity Space/John Kraus)

Welcome to Edition 5.30 of the Rocket Report! A hearty congratulations this week to both Relativity Space and Innospace, both of which got their debut missions off the launch pad this week. Making that final decision to push the button and go is never easy. As a bonus, the engine shots of Relativity's Terran 1 rocket at liftoff are some of the most beautiful rocket photos I have ever seen.

As always, we welcome reader submissions, and if you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets as well as a quick look ahead at the next three launches on the calendar.

Relativity Space has a successful failure. The shiny white Terran 1 rocket launched on its third attempt Wednesday night, lifting off from Florida's Cape Canaveral Space Force Station. The small, methane-fueled rocket then produced some stunning views as a blueish-green flame powered it toward space against the blackness of night. The first stage, with nine engines, appeared to perform nominally as it rose smoothly through the atmosphere, firing for more than two minutes. Then the rocket's second stage successfully separated, Ars reports.

Enlarge / A person wearing a tinfoil hat on September 20, 2019. (credit: Getty | Bridget Bennett)

In the latest efforts by Republican lawmakers to enshrine into law Americans' right to freely spread deadly infectious diseases to each other, the Missouri House this week advanced a bill that would bar governments, schools, and employers from mandating certain vaccines—as well as things like vaccine microchips, which do not actually exist.

The bill, HB 700 (PDF), was sponsored by Rep. Bill Hardwick, a Republican from Waynesville. Hardwick told the St. Louis Post-Dispatch that he believed people "lost their minds" during the COVID-19 pandemic, and that legally barring officials and employers from requiring life-saving vaccination, even among health care workers, feels "like it's the right thing to do."

The bill specifically bars requirements for people to receive COVID-19 vaccines. But it doesn't stop there. It also bars any requirements for people to receive "a dose of messenger ribonucleic acid (mRNA)," thus barring requirements for any future mRNA-based vaccines, should they be needed in upcoming pandemics or outbreaks. It also bars requirements for "any treatment or procedure intended or designed to edit or alter human deoxyribonucleic acid (DNA) or the human genome," and "any mechanical or electronic device" that would be placed "under the skin."

Enlarge / Artist's depiction of the interstellar comet 'Oumuamua, as it warmed up in its approach to the Sun and outgassed hydrogen. (credit: NASA/ESA/STScI)

In late 2017, our Solar System received its very first known interstellar visitor: a bizarre cigar-shaped object hurtling past at 44 kilometers per second, dubbed 'Oumuamua (Hawaiian for "messenger from afar arriving first"). Was it a comet? An asteroid? A piece of alien technology? Scientists have been puzzling over the origin and unusual characteristics of 'Oumuamua ever since, most notably its strange orbit, and suggesting various models to account for them.

But perhaps the answer is much simpler than previously thought. That's the conclusion of a new paper published in the journal Nature. The authors suggest that 'Oumuamua's odd behavior results from the outgassing of hydrogen as the icy body warmed in the vicinity of the Sun—a simple mechanism common among icy comets.

As we reported previously, 'Oumuamua was first discovered by the University of Hawaii's Pan-STARRS1 telescope, part of NASA's Near-Earth Object Observations program to track asteroids and comets that come into Earth's vicinity. Other telescopes around the world soon kicked into action, measuring the object's various characteristics.

Enlarge / A sea turtle of the sort found in the Paja Formation. (credit: Wikimedia Commons)

Roughly 130 million years ago, in an area within what is now central Colombia, the ocean was filled with a diversity of species unseen today. Within that water swam several massive apex predators that are the stuff of nightmares. These marine reptiles could reach lengths of 2 to 10 meters (about 6 to 32 feet), some with enormous mouths filled with teeth, others with relatively small heads (also filled with teeth) attached to long, snake-like necks.

These giants shared the ocean with countless smaller species, many of them predators themselves. These included ichthyosaurs—dolphin-like reptiles—as well as turtles, fish, ammonites, crabs, mollusks, sharks, and at least one species of crocodyliform.

Allowing all these creatures to thrive must have required a flourishing ecosystem at all levels. Thanks to discoveries in what’s called the Paja Formation, a treasure trove where fossils are abundantly and exquisitely preserved, researchers are now beginning to figure out how the ecosystem supported so many apex predators. And they may find hints of how it flourished so soon after a mass extinction brought the Jurassic to a close.

Enlarge / Terran 1 lights up the night sky in Florida on Wednesday evening. (credit: Relativity Space)

The shiny white Terran 1 rocket launched on its third attempt Wednesday night, lifting off from Florida's Cape Canaveral Space Force Station.

The small, methane-fueled rocket then produced some stunning views as a blueish-green flame powered it toward space against the blackness of night. The first stage, with nine engines, appeared to perform nominally as it rose smoothly through the atmosphere, firing for more than two minutes. Then the rocket's second stage successfully separated.

After this, something happened. From the video onboard the rocket it appeared the second-stage engine attempted to ignite but could not sustain this ignition. So far the company has not stated precisely what went wrong, be it a problem with one of the propellant pumps, injectors, or igniter system. Regardless, the second stage—which carried no payload due to the experimental nature of the test flight—fell back into the Atlantic Ocean.

Enlarge / Moderna CEO Stephane Bancel testifies before the Senate Health, Education, Labor, and Pensions Committee in the Hart Senate Office Building on Capitol Hill on March 22 in Washington, DC. (credit: Getty | Chip Somodevilla)

In Congressional testimony Wednesday, Moderna CEO Stéphane Bancel unabashedly defended the company's plans to raise the US list price of its COVID-19 vaccines by more than 400 percent—despite creating the vaccine in partnership with the National Institutes of Health, receiving $1.7 billion in federal grant money for clinical development, and making roughly $36 billion from worldwide sales.

Bancel appeared this morning before the Senate's Health, Education, Labor, and Pensions committee, chaired by Sen. Bernie Sanders (I-Vt.), who has long railed at the pharmaceutical price gouging in the US and pushed from policy reforms. After thanking Bancel for agreeing to testify, Sanders didn't pull any punches. He accused Moderna of "profiteering" and sharing in the "unprecedented level of corporate greed" seen in the pharmaceutical industry generally.

Sanders contrasted a recent survey finding that 37 percent of Americans can't afford their prescription drugs to the billions of dollars in profits reaped by drug companies. He noted several times that Bancel became a billionaire overnight amid the pandemic. Bancel is now estimated to be worth over $4 billion, Sanders added.

Enlarge (credit: Paul Starosta)

Our brains are filled with lots of specialized structures that do things like process visual information, handle memories, or interpret language. One of the ways we try to understand what a brain is capable of is by comparing it with the brains of other species—what structures are present in the brain, and what behaviors those brains support.

But what if the animal doesn't have a brain? Presumably, most of the behaviors we've looked at require at least some sort of centralized nervous system. But there are a lot of species, including anemones, corals, and jellyfish, that have a fairly diffuse nerve net and lack anything that's clearly brain-like. But apparently, that's enough to perform associative learning, the sort most often (forgive me) associated with Ivan Pavlov.

Is our cnidarian learning?

Associative learning is pretty much what it sounds like: Through repetition, an animal learns to associate an event with something that's otherwise unrelated to that event. In Pavlov's case, he trained dogs to associate a specific sound with being fed. Once trained, the dogs would start salivating once they heard the noise—even if food wasn't present. A huge range of animals are capable of associative learning, and it's easy to see how it can provide a selective advantage.

Enlarge / Portrait of Beethoven by Joseph Karl Stieler, 1820 (credit: Beethoven-Haus Bonn)

Ludwig van Beethoven is one of the greatest composers of all time, but he was plagued throughout his life by myriad health problems, most notably going mostly deaf by 1818. These issues certainly affected his career and emotional state, so much so that Beethoven requested—via a letter addressed to his brothers—that his favorite physician examine his body after his death to determine the cause of all his suffering.

Nearly two centuries after the composer's demise, scientists say they have sequenced his genome based on preserved locks of hair. While the analysis of that genome failed to pinpoint a definitive cause of Beethoven's hearing loss or chronic digestive problems, he did have numerous risk factors for liver disease and was infected with hepatitis B, according to a new paper published in the journal Current Biology. The researchers also found genetic evidence that somewhere in the Beethoven paternal line, an ancestor had an extramarital affair.

“We cannot say definitely what killed Beethoven, but we can now at least confirm the presence of significant heritable risk and an infection with hepatitis B virus,” said co-author Johannes Krause, an expert in ancient DNA at the Max Planck Institute of Evolutionary Anthropology. “We can also eliminate several other less plausible genetic causes.” The fully sequenced genome will be made publicly available so other researchers can have access to conduct future studies.

Enlarge (credit: Don Henderson via Getty Images)

Think of the worst invasive species you know. Kudzu: smothering trees and houses, growing a foot a day. Burmese pythons: stripping the Everglades of small animals. Asian carp: hoovering streams clean of plankton and swimming toward the Great Lakes.

They all came from somewhere else, arrived with no natural predators, outcompeted local flora and fauna, and took over whole ecosystems. But they all have their limitations: Kudzu dies in a hard freeze, carp can’t tolerate salt water, and pythons can’t cover long distances very fast. (Thankfully.)

Now imagine a species with all those benefits—foreign origin, no enemies—and no roadblocks to dominance: One that is indifferent to temperature, comfortable in many landscapes, able to run a lot faster than you, and muscular enough to leave a big dent in your car. That describes any of the possibly 6 million feral hogs in the United States, the most intractable invasives that most people have never heard of.