Tag: science

NASA built a Moon rover but can’t afford to get it to the launch pad

NASA has spent $450 million designing and building a first-of-its-kind robot to drive into eternally dark craters at the Moon’s south pole, but the agency announced Wednesday it will cancel the rover due to delays and cost overruns.

“NASA intends to discontinue the VIPER mission,” said Nicky Fox, head of the agency’s science mission directorate. “Decisions like this are never easy, and we haven’t made this one, in any way, lightly. In this case, the projected remaining expenses for VIPER would have resulted in either having to cancel or disrupt many other missions in our Commercial Lunar Payload Services (CLPS) line.”

NASA has terminated science missions after development delays and cost overruns before, but it’s rare to cancel a mission with a spacecraft that is already built.

The Volatiles Investigating Polar Exploration Rover (VIPER) mission was supposed to be a robotic scout for NASA’s Artemis program, which aims to return astronauts to the lunar surface in the next few years. VIPER was originally planned to launch in late 2023 and was slated to fly to the Moon aboard a commercial lander provided by Pittsburgh-based Astrobotic, which won a contract from NASA in 2020 to deliver the VIPER rover to the lunar surface. Astrobotic is one of 14 companies in the pool of contractors for NASA’s CLPS program, with the goal of transporting government-sponsored science payloads to the Moon.

But VIPER has been delayed at least two years—the most recent schedule projected a launch in September 2025—causing its cost to grow from $433 million to more than $609 million. The ballooning costs automatically triggered a NASA review to determine whether to proceed with the mission or cancel it. Ultimately, officials said they determined NASA couldn’t pay the extra costs for VIPER without affecting other Moon missions.

“Therefore, we’ve made the decision to forego this particular mission, the VIPER mission, in order to be able to sustain the entire program,” Fox said.

“We’re disappointed,” said John Thornton, CEO of Astrobotic. “It’s certainly difficult news… VIPER has been a great team to work with, and we’re disappointed we won’t get the chance to fly them to the Moon.”

NASA said it will consider “expressions of interest” submitted by US industry and international partners by August 1 for use of the existing VIPER rover at no cost to the government. If NASA can’t find anyone to take over VIPER who can pay to get it to the Moon, the agency plans to disassemble the rover and harvest instruments and components for future lunar missions.

Scientists were dismayed by VIPER’s cancellation.

“It’s absurd, to be honest with you,” said Clive Neal, a planetary geologist at the University of Notre Dame. “It made no sense to me in terms of the economics. You’re canceling a mission that is complete, built, ready to go. It’s in the middle of testing.”

“This is a bad mistake,” wrote Phil Metzger, a planetary physicist at the University of Central Florida, in a post on X. “This was the premier mission to measure lateral and vertical variations of lunar ice in the soil. It would have been revolutionary. Other missions don’t replace what is lost here.”

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REAL LIFE TRACTOR BEAMS? GAME-CHANGING NEW TECHNOLOGY COULD LEAD TO NON-INVASIVE MEDICAL PROCEDURES

Tractor beams, a technology once relegated to science fiction, could soon become a practical reality with the help of recent advancements in metasurface research.

Under development by researchers with the ARC Centre of Excellence for Transformative Meta-Optical Systems (TMOS), the new technology represents “an important first step in the development of metasurface-enabled tractor beams,” which the TMOS team says will be capable of reeling in particles using rays of light.

The science fiction counterparts to this emergent real-life technology have been depicted in films that include Star Wars, where such previously imaginary devices are used to prevent objects such as spacecraft from moving or evading capture.

While real-life tractor beams are still far from matching the power of their fictional analogs, the TMOS researchers say their development of the game-changing new technology draws inspiration from such once-imaginary concepts.

“This work opens new possibilities for using light to exert forces on tiny objects,” said Ken Crozier, the Chief Investigator of the recent research.

MAKING TRACTOR BEAMS A REALITY

The team, led by researchers at the University of Melbourne, reports the creation of a solenoid beam that relies on a special silicon metasurface to generate it.

Solenoid beams have been developed in the past, although these earlier designs mostly rely on devices known as special light modulators, or SLMs. The size of these devices has imposed a limiting factor on their potential use, particularly in handheld applications.

In the team’s new research, outlined in a study that recently appeared in ACS Photonics, they describe the special metasurface developed for their tractor beam technology as an extremely thin (about 1/2000 of a millimeter) layer of nanopatterned silicon, which they believe may one day help to facilitate handheld devices that will allow surgeons to conduct non-invasive biopsies on patients, which would result in less damage to surrounding tissues than current methods.

At the heart of the technology is the understanding that forces exerted by beams of light have the effect of displacing particles, which are moved further from the light source with their passage. However, past research has shown that solenoid beams can draw particles toward their light source, similar to how the grooves in a drill allow the material it cuts into to be pulled upward.

The TMOS researchers say their beam has a few significant advantages over past designs, allowing it to be more flexible and capable of functioning without any need for an SLM. Additionally, its size makes it far more useful in practical, handheld designs while also requiring less power than existing varieties.

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NASA SCIENTIST SAYS PATENTED ‘EXODUS EFFECT’ PROPELLANTLESS PROPULSION DRIVE THAT DEFIES PHYSICS IS READY TO GO TO SPACE

A patented experimental propellantless propulsion drive is finally ready to go to space, according to its inventor, a veteran NASA scientist with decades of expertise in electrostatics.

Dr. Charles Buhler, the technology’s creator, says the propulsion system may represent a working version of Quantized Inertia, a theory first proposed by University of Plymouth professor Mike McCulloch. The proposition has been subjected to criticism from mainstream scientists in the past because it seemingly violates Newton’s third law of motion.

The controversial technology, which The Debrief covered in April, is privately owned by Exodus Propulsion Technologies and is not affiliated with NASA.

After almost a decade of research, design, and testing, Buhler says he and his team are confident they have verified the force, one his team calls the Exodus Effect(TM), in “nearly every way conceivable on Earth.” The final step required to officially demonstrate the validity of their discovery is to send the propulsion drive unit into space.

“We’ve done everything we could have in vacuum chambers here on Earth. We’ve tested it every which way you can, but the real validation is to have this thing move in space,” Buhler told The Debrief in a lengthy interview. “That’s the bottom line.”

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Your brain on shrooms — how psilocybin resets neural networks

Taking psilocybin, the hallucinogenic compound found in magic mushrooms, temporarily resets entire networks of neurons in the brain that are responsible for controlling a person’s sense of time and self, finds a study that repeatedly imaged the brains of seven volunteers before, during and after they took a massive dose of the drug.

The findings, published in Nature on 17 July1, could offer insights into why the compound might have a therapeutic effect on some neurological conditions.

Researchers “saw such massive changes induced by psilocybin” that some study participants’ brain-network patterns resembled those of a different person entirely, says Shan Siddiqi, a psychiatric neuroscientist at Harvard School of Medicine in Boston, Massachusetts. “I’ve never seen an effect this strong.”

Most of these changes lasted for a few hours, but one key link between different parts of the brain remained disrupted for weeks.

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NASA RADAR DATA CONFIRMS EXISTENCE OF SUBSURFACE “TUNNEL” NEAR FAMOUS APOLLO-ERA LUNAR LANDING SITE

For the first time, scientists have confirmed the existence of an underground tunnel-like feature near the landing site of the first crewed mission to the Moon. The discovery concludes almost half a century of speculation involving the suspected existence of caves below the lunar surface.

On July 20, 1969, astronauts Neil Armstrong and Buzz Aldrin became the first humans to set foot on the lunar surface after making a soft landing in the Apollo 11 Lunar Module on the mare plain of the Moon’s famous Mare Tranquillitatis, Latin for “Sea of Tranquility.”

Now, according to the findings of an international team of researchers led by the University of Trento in Italy, the existence of a subsurface tunnel-like lava tube cave beneath the Mare Plain has been confirmed.

A new study published in the journal Nature Astronomy revealed the discovery, which relied on data obtained with NASA’s Lunar Reconnaissance Orbiter (LRO).

The discovery of the tunnel-like feature has been called a significant milestone toward understanding the Moon’s various geological components more fully. It also offers a potential shelter area that could be used by astronauts during future crewed missions.

Lorenzo Bruzzone, a professor at the University of Trento, said the existence of such underground features had long been suspected, although the team’s discovery is the first confirmation that they exist.

“These caves have been theorized for over 50 years,” Bruzzone said in a statement, “but it is the first time ever that we have demonstrated their existence.”

Data originally obtained in 2010 by the Miniature Radio-Frequency (Mini-RF) instrument aboard the LRO, which included radar reflections from a pit discovered in the Mare Tranquilitatis, were reexamined by the research team.

“Thanks to the analysis of the data, we were able to create a model of a portion of the conduit,” said Leonardo Carrer, a researcher at the University of Trento involved with the new findings.

“The most likely explanation for our observations is an empty lava tube,” Carrer said.

Given the demanding environment on the surface of the Moon, where temperatures can reach as much as 127°C on its illuminated side while dropping to frigid lows nearing -173°C on the unilluminated side, lava tube caves could be ideal locations for astronauts to use as shelters on the Moon.

In addition to being ideal environments for subsurface shelters, such an underground tunnel-like feature could also provide a degree of shielding from cosmic and solar radiation that bombards the lunar surface, which can be up to 150 times more powerful there than on Earth.

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PHOTON ENERGY SYSTEM THAT GENERATES 60 TIMES MORE POWER THAN SOLAR PANELS COULD POWER AN ELECTRIC CAR WITHOUT A BATTERY

New York-based tech company Wavja says the third generation of its proprietary Photon Energy System (PES), which employs tiny spheres to collect photonic energy, generates over 60 times the output of similarly sized traditional solar panels. According to a new video released by the company, the next generation of the PES could soon be powerful enough to run an electric car without a battery.

The company says its system can also capture light energy from artificial sources, including LED lighting, and convert it to usable electricity, offering both indoor and outdoor applications.

“Our system generates remarkable luminosity by utilizing multiple layers of cutting-edge materials and specialized spheres,” explains Shereen Chen, co-founder and executive director of Wavja USA, in the recently posted video. “This luminosity is then seamlessly converted to electricity using our proprietary technology.”

“It revolutionizes how we harvest sunlight,” Chen adds.

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BIZARRE TACHYONS THAT MAY BE ABLE TO SEND DATA BACK IN TIME COULD BE RECONCILED WITH SPECIAL RELATIVITY

Tachyons, a mysterious variety of hypothetical particles capable of exceeding light speed, could play a more significant role in our understanding of the universe and its causal structure than scientists previously realized.

Not only have tachyons been revealed to be potentially compatible with Einstein’s special theory of relativity, but now, according to an international collaboration of physicists from the University of Warsaw and the University of Oxford, these curious particles could also help shed light on remaining questions regarding our understanding of the quantum world.

EXCEEDING THE UNIVERSAL SPEED LIMIT

Tachyons, which derive their name from the Greek word tachýs, meaning fast or quick, are theorized to exist under conditions where their minimum speed would be the speed of light. This effectively means that they should only be capable of traveling at velocities that exceed this universally recognized speed limit.

Ordinary particles, by comparison, move at subluminal or slower than light speeds. As Einstein’s theory of relativity dictates, the universal laws of physics prevent anything from being capable of accelerating to the speed of light from a slower speed. The same isn’t necessarily true for tachyons, though, since they are theorized to be born at speeds that already exceed light. Hence, the opposite would seem to be the case for these unusual particles, which hypothetically should be incapable of slowing down to light speed or slower speeds.

The idea of such superluminal particles has its origins in theoretical studies conducted back in the 1960s by physicist Gerald Feinberg. Although no experimental evidence has ever confirmed their existence, a theoretical framework for how these proposed particles might come to be has been developed over the decades, occasionally resulting in some rather strange paradoxes.

Among these is a curiosity that arises from their superluminal travel speeds, which indicates that tachyons may effectively be capable of sending information backward in time, giving rise to bizarre conditions under which cause and effect could theoretically become reversed.

However, new research is revealing that despite the implications of their existence, these bizarre hypothetical particles may be compatible with the special theory of relativity and could also help offer physicists significant new insights into quantum theory.

The new findings could potentially also upend long-held notions about the unlikelihood of superluminal particles, suggesting that tachyons might even play a crucial role in the formation of matter.

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‘Amazing’ new technology set to transform the search for alien life

It has produced one of the most consistent sets of negative results in the history of science. For more than 60 years, researchers have tried to find a single convincing piece of evidence to support the idea that we share the universe with other intelligent beings. Despite these decades of effort, they have failed to make contact of any kind.

But the hunt for alien civilisations may be entering a new era, researchers believe. Scientists with Breakthrough Listen, the world’s largest scientific research programme dedicated to finding alien civilisations, say a host of technological developments are about to transform the search for intelligent life in the cosmos.

These innovations will be outlined at the group’s annual conference, which is to be held in the UK for the first time, in Oxford, this week. Several hundred scientists, from astronomers to zoologists, are expected to attend.

Astronomer Steve Croft, a project scientist with Breakthrough Listen, said: “There are amazing technologies that are under development, such as the construction of huge new telescopes in Chile, Africa and Australia, as well as developments in AI. They are going to transform how we look for alien civilisations.”

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Researchers demonstrate how to build ‘time-traveling’ quantum sensors

The idea of time travel has dazzled sci-fi enthusiasts for years. Science tells us that traveling to the future is technically feasible, at least if you’re willing to go near the speed of light, but going back in time is a no-go. But what if scientists could leverage the advantages of quantum physics to uncover data about complex systems that happened in the past?

New research indicates that this premise may not be that far-fetched. In a paper published June 27, 2024, in Physical Review Letters, Kater Murch, the Charles M. Hohenberg Professor of Physics and Director of the Center for Quantum Leaps at Washington University in St. Louis, and colleagues Nicole Yunger Halpern at NIST and David Arvidsson-Shukur at the University of Cambridge demonstrate a new type of quantum sensor that leverages quantum entanglement to make time-traveling detectors.

Murch describes this concept as analogous to being able to send a telescope back in time to capture a shooting star that you saw out of the corner of your eye. In the everyday world, this idea is a non-starter. But in the mysterious and enigmatic land of quantum physics, there may be a way to circumvent the rules. This is thanks to a property of entangled quantum sensors that Murch refers to as “hindsight.”

The process begins with entanglement of two quantum particles in a quantum singlet state—in other words, two qubits with opposite spin—so that no matter what direction you consider, the spins point in opposing directions. From there, one of the qubits—the “probe,” as Murch calls it—is subjected to a magnetic field that causes it to rotate.

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Scientists successfully create a time crystal made of giant atoms

A crystal is an arrangement of atoms that repeats itself in space, in regular intervals: At every point, the crystal looks exactly the same. In 2012, Nobel Prize winner Frank Wilczek raised the question: Could there also be a time crystal—an object that repeats itself not in space but in time? And could it be possible that a periodic rhythm emerges, even though no specific rhythm is imposed on the system and the interaction between the particles is completely independent of time?

For years, Frank Wilczek’s idea has caused much controversy. Some considered time crystals to be impossible in principle, while others tried to find loopholes and realize time crystals under certain special conditions.

Now, a particularly spectacular kind of time crystal has successfully been created at Tsinghua University in China, with the support from TU Wien in Austria.

The team used laser light and special types of atoms, namely Rydberg atoms, with a diameter that is several hundred times larger than normal. The results have been published in the journal Nature Physics.

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