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More than a decade ago, dark matter experts Daniel Akerib and Thomas Shutt joined the Department of Energy’s SLAC National Accelerator Laboratory, continuing their mission to uncover the elusive substance. SLAC recently caught up with them to discuss the current state of the dark matter search.
A study of more than 26,000 white dwarf stars has confirmed a long-predicted but elusive effect in these ultra-dense, dying stars: Hotter white dwarfs are slightly puffier than cooler ones, even when they have the same mass.
An international research team has used the James Webb Space Telescope (JWST) to observe massive galaxies discovered by the Subaru Telescope in a corner of the early universe known as the Spiderweb protocluster. The JWST results confirm what had been suggested from the Subaru Telescope observations, namely that supermassive black hole activity can truncate the growth of galaxies.
An international team of astronomers has analyzed multi-color photometric and spectroscopic observations of the star Gaia20bdk. As a result, they found that Gaia20bdk is a FUor-type young stellar object. The finding is presented in a paper published Dec. 10 on the arXiv preprint server.
In a span of less than 22 hours, SpaceX managed three Falcon 9 rocket launches and one landing of a Dragon spacecraft.
The woolly mammoth may have gone extinct as recently as 4,000 years ago on Wrangel Island near Alaska. However, scientists have been working diligently for years on bringing them back. In 2019, Japanese researchers made a breakthrough using 28,000-year-old DNA from Yuka, a perfectly preserved baby mammoth found on the Yukaghir coastline of Siberia in 2010. Even though she remained frozen for millennia, scientists could extract flowing blood from Yuka, a first in history. Yuka possibly died as a young mammoth, possibly around age six to eleven. Her body still featured thick and long strawberry blond shaggy hair. If scientists brought back a baby like Yuka, a calf might look much like a living Snuffleupagus. See Yuka from the BBC below: Reawakening a Woolly MammothScientists in Japan implanted Yuka’s cell nuclei into mouse egg cells. For 90-year old Japanese biologist Akira Iritani, his dream of resurrecting the woolly mammoth seemed near. In five cases, the scientists observed a biological reaction indicating cell division could take place. Kei Miyamoto, a member of the team at Kindai University in western Japan, told AFP:
However, Miyamoto said cellular damage was “profound.” Thus, a “Jurassic Park-style resurrection” remained implausible.
Therefore, scientists needed better cloning technology and samples. Perhaps then, they could insert mammoth DNA into eggs from their closest living relatives, the elephants. Until methods improved, they would continue with mouse embryos. Reviving and Restoring Woolly MammothsToday, a leading organization in the “de-extinction movement,” called Revive & Restore, hopes to bring back the woolly mammoth. If not the actual species, they could bring back a “proxy” species with similar traits and ecological functions. By editing the woolly mammoth’s genes into the Asian elephant genome, the researchers could create “an elephant cousin” more adapted to live in the far north.
Furthermore, as researchers are learning with today’s elephants, these large grazers are essential for maintaining and balancing their environments. In northern regions, there used to be a “mammoth steppe.” There in the tundra, grazing herds of antelope, deer, caribou, horses, bison, and woolly mammoths roamed. If these grazers came back, their activities could restore the grasslands, preserve the permafrost, and trap carbon. Consequently, the mammoths could help mitigate human-driven climate change. The project also hopes to revive extinct species like the passenger pigeon and revitalize the Amerian Chestnut tree. Related: What became of the Siberian unicorns that once walked the Earth? We Are As GodsA new documentary called We Are As Gods focuses on Stewart Brand, 82, the Stanford-educated author and co-founder of Revive & Restore. When asked why he wants to bring species back from extinction, Brand says it’s a way to undo humans’ environmental damage.
To Brand, science can partially empower people to reverse the harm they have done to the natural world.
See more about the documentary, We Are As Gods, below from ReasonTV: Related: Giant mammoth traps uncovered outside of Mexico City with multiple skeletons inside The Story of a Woolly Mammoth Named LyubaIn May 2007, a Nenets reindeer herder named Yuri Khudi discovered Lyuba, a woolly mammoth calf on a sandbar on the Yuribey River in Siberia. A year later, a calf named Khroma was discovered 3,000 miles away. Nenets believe that mammoths are dangerous omens, creatures that wander the underworld. Worse, some Nenets even believe people who find a mammoth are marked for early death, according to National Geographic. Nevertheless, Khudi and a friend contacted a local museum, and officials managed to save Khudi’s body from near disaster. Unbeknownst to Khudi, his cousin sold the calf to a local shop where people began taking photos. Meanwhile, stray dogs gnawed part of her tail and right ear. Thankfully, the officials intervened and shipped the mammoth by helicopter to the Shemanovsky Museum in Salekhard, the regional capital. Later, they named the mammoth Lyuba after Khudi’s wife. Amazingly, she remained perfectly intact, aside from missing hair and toenails. After thousands of years, she retained her internal organs, stomach still containing milk, bones, milk tusks, and other teeth. Even her eyelashes remained and she looked like she was sleeping. See more about Lyuba from National Geographic: Mysteriously Well-PreservedUsing carbon-14 dating, scientists in the Netherlands found that Lyuba died 40,000 years ago as a one-month-old. Notably, traces of sediment in her trunk suggested she died after sinking into the mud and suffocating. Then, scientists suspect her body was pickled and preserved by microbes, which may have discouraged scavengers. However, it’s mysterious how her body remained preserved and pristine after thawing, possibly for nearly a full year. If pickling had discouraged scavengers, why did the stray dogs attack the body? Researchers used CT scanners to create 3-D models of Lyuba and Khroma. Since the bodies were too large to scan at a hospital, they required something larger. Thus, they used scanners designed to find flaws in vehicle transmissions at Ford Motor Co.’s Nondestructive Evaluation Laboratory in Livonia, Michigan. (see video below) Featured images: Screenshot via YouTube with mammoth calf: Apotea via Wikimedia Commons, Creative Commons Attribution-Share Alike 3.0 Unported Quantum computers have the potential of outperforming classical computers in some optimization and data processing tasks. However, quantum systems are also more sensitive to noise and thus prone to errors, due to the known physical challenges associated with reliably manipulating qubits, their underlying units of information.
Understanding and reliably measuring the geometric properties of quantum states can shed new light on the intricate underpinning of various physical phenomena. The quantum geometric tensor (QGT) is a mathematical object that provides a detailed description of how quantum states change in response to perturbations, thus offering insights about their underlying geometry.
Two US astronauts stranded for months on the International Space Station will remain there at least until late March, NASA said Tuesday as it announced another delay in the mission to bring them home.
Underneath a granite hill in southern China, a massive detector is nearly complete that will sniff out the mysterious ghost particles lurking around us.
Just as some children physically resemble their parents, many scientists have long thought that developing planets should resemble the swirling disk of gas and dust that births them.
A space rocket built by a Japanese startup blasted off on Wednesday but was later seen spiraling downwards in the distance as the company said the launch had to be terminated.
Bill Nelson, 78, the former Florida senator and spaceflight veteran, became the NASA Administrator on May 3, 2021. One month later, Bill Nelson has directed NASA to study UFOS (or UAPs). Notably, the push comes as a much-anticipated UAP report is due to Congress. In 1986, Nelson flew on the 24th flight of the Space Shuttle Columbia, conducting 12 medical experiments. During a CNN interview with Rachel Crane, Nelson claimed that NASA doesn’t know what the authentic UFOs observed by Navy pilots and equipment could be. Now, he’s quickly leading scientific efforts into the phenomena.
Leading UFO Research with ScienceLeading with science and evidence is also how former Nevada senator Harry Reid proposes approaching UFO research. In a recent op-ed in the Times, Reid, the man who created the clandestine Advanced Aerospace Threat Identification Program (AATIP), wrote:
Now, NASA could have more funds for scientific inquiry. In the budget for 2022, President Biden has requested a 6.6% increase for NASA science. No Formal NASA UFO Task Force?Although Bill Nelson is pushing for scientific research, NASA press secretary Jackie McGuinness says Nelson “did not establish a formal task force,” per CNN. Interestingly, McGuinness cited American’s interest in the subject as a reason why NASA scientists are taking a new approach.
In response to the news about NASA, former Deputy Assistant Secretary of Defense for Intelligence Christopher Mellon called the news “wonderful and unexpected news of scientific open-mindedness.” Then, he notes “potential” for NASA’s collaboration with the Intelligence Community. Bill Nelson isn’t Ruling out ExtraterrestrialsWhen Rachel Crane asked Bill Nelson, “Do you think we have been contacted by extraterrestrials?” he deflected to talking about the Navy pilot’s experience. Although Nelson denies knowledge of extraterrestrials, he doesn’t rule it out, saying he doesn’t know if it’s ETs, an enemy, or an optical phenomenon.
Then, Crane pushed again, asking Nelson directly, “What do you think it is? What’s your personal take on it?” A smiling Nelson replied:
“What have they said to you?” asked Crane.
Then, Nelson claims that NASA won’t be working directly with the Pentagon on the upcoming UAP report but said, “I can guarantee you if we find something, the Pentagon will want to know.” The UAP ReportAccording to recent reports, current and former government officials say military and spy agencies are “blocking or simply ignoring the effort,” to create a UAP report that may come this month. Meanwhile, the Navy-led Pentagon task force, now called The Unidentified Aerial Phenomena Task Force, or UAPTF, reportedly has few personnel or resources to gather any evidence. Now, it looks like NASA is not directly contributing to the public report, a notable omission, although they are seeing a budget increase. Hopefully, there is potential for a collaboration sometime in the future, as Mellon suggests? Right now, it doesn’t seem to be happening – at least not publicly. For those who have long accused NASA of covering up the truth about extraterrestrials, it comes across as curious. However, tomorrow is a new day, and who knows what may happen next? Recommended: Did a ‘Galactic Federation’ Ask Trump Not To Reveal Extraterrestrials? For more by this author, follow The Gamut and The Cosmic Web on Facebook. See the Bill Nelson interview via CNN: Featured image: Screenshots via YouTube/CNN Microgravity is known to alter the muscles, bones, the immune system and cognition, but little is known about its specific impact on the brain. To discover how brain cells respond to microgravity, Scripps Research scientists, in collaboration with the New York Stem Cell Foundation, sent tiny clumps of stem-cell derived brain cells called “organoids” to the International Space Station (ISS).
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