Discovery marks the first time a radio signal has been confirmed as coming from a single planet rather than an entire system.
Category: space – Page 5
First Evidence for Quantum Gravity?
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In October 2022, a detector in Russia caught a single photon with an energy far beyond anything our particle colliders can produce. According to physics as we know it, it should never have made it to Earth. Now a team of physicists says it might be the first evidence for quantum gravity. Let’s take a look.
Paper: https://doi.org/10.1103/zjh2-mc47
#sciencenews #physics #quantumphysics #space.
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David Loy on Zen, EcoDharma, AI and Story
“How do I respond appropriately?”
Zen teacher David Loy thinks that question might be the whole of wisdom. It isn’t asking what the solution is or who’s to blame. It’s asking what this moment actually demands of me.
When we sat down in 2022, the #ClimateCrisis already felt like it couldn’t wait, and #AI was still something most people filed under “later.” Neither one is “later” anymore.
Loy has spent his life trying to close a gap the East and West kept widening: personal enlightenment on one side, social revolution and systemic change on the other. He argues we can no longer keep them apart. Individuals make society, but society also makes individuals. Change only one and you haven’t changed much.
We talked for two hours, and it went to places I didn’t expect. Why he calls this the most dangerous moment in our civilization’s history. What a fellow Zen teacher’s idea of brain implants and the gamification of enlightenment says about us. How the “delusion of separation” connects #ExistentialRisk, democracy, and the dream of colonizing Mars.
Then he got to stories, and to why he believes the world is made of them.
Google implements Android developer verification rules
To instill confidence and trust in users, Google has introduced Android developer verification rules, a new platform policy governing the distribution of Android applications, with immediate effect in jurisdictions such as Brazil, Indonesia, Singapore and Thailand. The system verifies app installations from the following app stores i.e google play, HONOR app market, OPPO app market, galaxy store, palm store, V-appstore and GetApps.
The policy will be expanded to all other markets 2027 onwards, with the aim to ensure transparecncy in the Android ecosystem by ensuring that developers are vetted before their apps become widely available. Further, the applications that have not been verified may still be sideloaded, but the new process imposes a 24‑hour waiting period before such unverified apps can be installed on devices.
With dominance in reach and scale, Android’s new platform policy aims to provide a safer, more trusted ecosystem benefitting the entire developer community and users. Further, it aims to deters bad actors, making developers accountable, enforce safety policies, and remove malicious networks.
Team selected for NASA program to explore potential lunar cave
NASA has selected a Planetary Science Institute–led proposal to investigate whether a potentially large underground cave extends beyond the opening of a lunar pit. Such a cave may one day provide a safe haven for astronauts to escape the radiation and extreme temperature swings present at the lunar surface.
Led by PSI associate director and senior scientist Than Putzig, the selected project is the Geophysical Instruments for Marius Lunar pit Investigation, or GIMLI. PSI is partnering with Honeybee Robotics, which will build much of the equipment and instrumentation for the effort. The equipment and instrumentation will be carried on a lander and rover provided through the Commercial Lunar Payload Services initiative. The PSI work will be carried out in partnership with the Norwegian Space Agency.
“GIMLI represents the type of ambitious planetary science that PSI was built to pursue,” said PSI director and CEO Amanda Hendrix. “Than and his team are taking a scientific question we’ve been studying from orbit and have developed a way to investigate it directly on the moon. We’re excited to have PSI leading this effort and to be partnering with NASA and Honeybee Robotics to learn more about the moon and its volcanic past.”
Astronomers discover the lowest-mass double neutron star system to date
Neutron stars, the extremely dense remains of massive stars that exploded at the end of their lives, are widely studied astrophysical objects. Some of these stars, known as pulsars, spin and send out beams of radio waves, making them appear to pulse as the beams sweep past Earth.
According to Einstein’s theory of general relativity, orbiting neutron stars should emit ripples in spacetime known as gravitational waves. The resulting loss of energy should gradually draw pairs of neutron stars closer together, shortening the time they take to complete each orbit.
Researchers at the Chinese Academy of Sciences, the State Key Laboratory of Radio Astronomy and Technology in Beijing and other academic institutions in China set out to test this prediction by studying PSR J1856–0039, a double neutron star (DNS) system discovered using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in China.
Physicists who uncovered the first particle accelerator were honored with a Nobel Prize 75 years ago
While scientists are known for their dedication to their research, crawling on the floor to avoid electrocution for the sake of a measurement seems a little excessive. But this is what British physicist John Cockcroft and Irish physicist Ernest T.S. Walton had to do in the early 1930s while studying the structure of atomic nuclei. Luckily, their efforts led to their receiving the Nobel Prize in 1951.
In the early 1930s, scientists were just beginning to discover the extraordinary world hidden inside the atom, which is made up of a dense center, called the nucleus, with electrons orbiting around it.
Nobel laureate Ernest Rutherford had already shown that radioactive materials sometimes emitted particles, naturally changing the makeup of their atomic nuclei. When energetic particles collided with atomic nuclei, they could trigger a reaction that rearranged the protons and neutrons in the nucleus—sometimes transforming one element into another. But scientists could only study this phenomenon using particles from radioactive decays, which provided limited energy and intensity.
Scientists Simulated Moons Being Blown Apart — and Found Something Unexpected
A study suggests that icy moons can still harbor oceans after catastrophic collisions, a finding that could help guide the search for life beyond Earth.
Many moons orbiting Saturn, Uranus, and Neptune are thought to conceal liquid water beneath miles of icy shell. These buried oceans hold a basic ingredient for life as we know it, making them promising places to search for extraterrestrial organisms in a region shaped by violent collisions.
Scientists suspect some of today’s moons are reassembled remnants that were repeatedly shattered by space debris and pulled back together. This cosmic demolition derby raises a critical question for astrobiologists: Do massive collisions destroy a moon’s ocean and extinguish any chance for life?
Physicists Find a Superconductor That ‘Breaks’ The Symmetry of Time — A First For Its Kind
Under certain conditions – such as bone-brittling temperatures lower than that of deep space – superconductors can conduct electricity without resistance and resultant energy loss.
Though they vary in their chemical composition, operational temperature ranges, and magnetic properties, superconductors come in two groupings.
First, conventional and unconventional superconductors differ in how their electrons become entangled in tandems called Cooper pairs, an identity-sharing state that allows them to gracefully glide through the atomic jumble of their materials to facilitate uninterrupted electric flow.
NASA’s Roman Space Telescope Takes First Coronagraph Instrument Observation
On September 22, the Coronagraph Instrument on NASA’s Nancy Grace Roman Space Telescope opened its eyes to cosmic light for the first time. The ultimate purpose of the instrument—which is commanded from Caltech’s IPAC, a science and data center for astrophysics and planetary sciences—is to demonstrate technology that can block starlight, providing unprecedented views of the planets and dusty disks around nearby stars.
The coronagraph first woke up on September 1 and stretched its digital, electronic, and mechanical “limbs” mid-month. Once the Roman team confirmed that the fine-guidance system was holding the Coronagraph Instrument steady, scientists adjusted the focus so it could take its first bleary-eyed look at space, which will help scientists fine-tune the instrument’s view.
“We’re all extremely pleased with how well things are working,” says Alexandra Greenbaum, coronagraph data management system lead at IPAC. “There’s a lot of collaboration that went into this milestone, so it’s wonderful to see all of us working together and to be a part of the team. I’m really looking forward to supporting the rest of commissioning, both on the operations and the data processing.”