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NASA satellite sees sea ice crack apart in Canada

NASA satellite sees sea ice crack apart in Canada

Yahoo4 days ago

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NASA satellites looked down on huge cracks forming in sea ice in Canada's far north.
The Amundsen Gulf is named after Roald Amundsen, a Norwegian explorer who, in the early 1900s, embarked on a voyage into the Northwest Passage, a winding narrow passage through the Canadian Arctic Archipelago. Amundsen was hoping to use the Northern Passage as a shortcut, reducing travel time, according to NASA's Earth Observatory.
After facing several hazards, his ship and crew successfully emerged from the passage, becoming the first people to successfully navigate the dangerous terrain. Amundsen's ship, called the Gjøa, was only crewed by six men, all of whom helped conduct meteorological observations while sailing.
The Amundsen Gulf lies in the Northwest Territories of Canada.
While Roald Amundsen and his crew paved the way for other ships to navigate the Northern Passage, the route still poses dangers for ships due to the shifting sea ice. Seasonal changes can cause sea ice to melt and break apart, drifting in the cold arctic waters. While this in itself may not be necessarily dangerous, if the sea ice accumulates enough, it can create "choke points" that block ships from sailing through.
In this image, taken by the MODIS (Moderate Resolution Imaging Spectroradiometer) on NASA's Terra satellite, much of the sea ice is still "fastened" to the coastline, but other chunks have migrated into the Beaufort Sea. This ice break up will continue for several months as warmer temperatures and wind help to crack apart the thick arctic ice. The cycle usually begins in March 2025, according to NASA's Earth Observatory
You can read more about sea ice levels in the arctic as satellites like Terra and other continue to observe Earth's many beautiful structures.

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White House Aims To Halt Fantastical NASA Missions Across Solar System
White House Aims To Halt Fantastical NASA Missions Across Solar System

Forbes

time4 hours ago

  • Forbes

White House Aims To Halt Fantastical NASA Missions Across Solar System

The New Horizons spacecraft sends back its sensational snapshots of Jupiter, and its volcanic moon ... More Io, before the mission's close encounter with Pluto (Photo by: Photo12/Universal Images Group via Getty Images) Universal Images Group via Getty Images The White House bid to terminate NASA's leading-edge flights of exploration 'across the solar system' threatens to explode American leadership in discoveries that have reshaped civilization since the rise of the first Space Age, says one of the world's top planetary scientists. As space powers across the continents vie to map and image planets and moons, comets and ice-worlds circling the sun, slashes to NASA's funding would represent a great leap backward, crippling it even as rivals race ahead, says Alan Stern, a one-time leader at NASA and a globally acclaimed space scientist. The president's new proposed budget drastically cuts appropriations for NASA, with outlays for its planetary science missions—the exploration of Pluto and other celestial worlds by space-borne rockets and robots, cameras and telescopes—axed almost in half. Now facing the guillotine—inexplicably—are constellations of technologically advanced space probes developed by NASA and spearheading scientists across America, including the Juno imager now orbiting Jupiter, the Mars Odyssey and Maven spacecraft gliding above Mars and the asteroid hunter OSIRIS-Apophis. NASA's Mars Odyssey spacecraft, in orbit around Mars, is one of the leading-edge explorers slated to ... More be terminated by the White House. Shown here is an artist's impression of the orbiter. (Photo) Getty Images 'Incredibly, this budget proposes to turn off 55 perfectly working, productive spacecraft across the solar system,' Dr. Stern, who once headed NASA's Science Mission Directorate, tells me in an interview. Stern took up that post after conceiving and designing one of the American space agency's most sensational missions ever - the New Horizons spacecraft that aced a close approach with Pluto while sending back fantastical images of the otherworldly orb and its moons - a miniature planetary system that generated billions of hits when it began beaming down across NASA's website. While New Horizons continues its super-speed flight through the outer solar system, charting the mysterious frozen reaches of the Kuiper belt, the president's plan calls for the spacecraft to be cast away. Abandoning the $900-million mission in order to recoup the minimal costs of its ongoing operation makes no sense economically or scientifically, Stern says. The robotic photographer New Horizons images Pluto as it speeds through the outer solar system ... More (Photo by NASA/APL/SwRI via Getty Images) Getty Images 'With New Horizons,' he says, 'there are a lot of important scientific objectives still ahead, things no other spacecraft can do.' 'Terminating this mission would also represent a tragic loss of soft power projection for the U.S.' The Horizons craft, and its array of next-generation cameras and spectrometers, is exploring a region beyond Pluto that no other human-created probe has ever entered, with a treasure trove of potential discoveries waiting. 'This would be like sending a message to [Christopher] Columbus to sink his ships while they were in North America,' Stern tells me, upending a new age of discovery. 'With New Horizons, we have the power and the fuel to run this mission for another 20 years … and we have more Kuiper belt objects to explore.' The White House, in issuing its slashed budget plan for NASA, never provided a logical rationale for torpedoing some of the agency's world-leading missions to survey and image the solar system. Its inscrutable sinking of some of these vanguard voyages was unveiled with the terseness of a telegram: 'Operating missions that have completed their prime missions (New Horizons and Juno) and the follow-on mission to OSIRIX-REx, OSIRIS-Apophis Explorer, are eliminated.' The asteroid-hunter OSIRIS spacecraft, shown here at the Kennedy Space Center in Florida, is one of ... More the trailblazers set to be terminated by the White House. (Photo by Bruce Weaver / AFP) (Photo by BRUCE WEAVER/AFP via Getty Images) AFP via Getty Images The OSIRIS spacecraft, which had been slated to rendezvous with the closely approaching Apophis asteroid ahead, is a precursor mission to defending the Earth's eight billion citizens against doomsday cosmic strikes by colossal comets or asteroids of the future. The robotic photographer Juno has snapped an endless kaleidoscope of imagery as it floats around Jupiter. Scientists at NASA's Jet Propulsion Lab have posted raw impressions of the orb and its moons and invited 'citizen scientists' to Photoshop and launch them across the cybersphere. In the process, they are becoming part of the spacefaring civilization that is spreading out across the globe. Model of the $1-billion Juno spacecraft, which is now orbiting and photographing Jupiter (Photo by ... More) Getty Images During its own space odyssey, New Horizons has astounded stargazers, students and scholars worldwide with its technicolor panoramas of Pluto, covered in surreal ice-fields and cryo-volcanoes, and its age-old companion Charon. The twin netherworlds—named after the mythical Greek god of the underworld and the pilot who shuttled souls across the river Styx—circle more than five billion kilometers distant from the sun, along an orbit that Stern's Pluto expedition took nine years to reach. Now, even as it whizzes beyond all of the classical planets, New Horizons, and its future, has entered the purgatory of potential excommunication by mission controllers—and their masters—six worlds away. The New Horizons spacecraft, now speeding through the outer solar system, could be jettisoned under ... More a White House plan that would destroy American leadership in planetary science missions. (Photo by Heritage Art/Heritage Images via Getty Images) Heritage Images via Getty Images 'This is a vast and tragic mistake,' Stern says, 'because the issue is larger than just NASA, it also affects U.S. world leadership [and] responsible government that protects taxpayers from waste like this.' The administration's crash-and-burn dismissal of the solar system's trailblazing robotic discoverers has triggered trepidation across NASA, whose ranks of pioneering scientists are likewise set to be culled. Within NASA, Alan Stern is a pole star of cutting-edge exploration, helping guide more than two dozen missions. After his New Horizons spacecraft rendezvoused with Pluto, the agency bestowed its highest honor on him - the NASA Distinguished Public Service Medal. 'Stern led the team that returned remarkable imagery and other data from the Pluto system last summer, generating headlines worldwide and setting a record for the farthest world ever explored,' NASA's leaders said. "New Horizons represents the best of humanity and reminds us of why we explore,' added Jim Green, NASA's director of planetary science. "The first flyby of Pluto is a remarkable achievement.' Being given the chance to lead the close encounter with Pluto, Stern said on accepting the award, 'has been the greatest honor of my lifetime.' Around the same time, NASA film-makers paid tribute to Stern, his 2000+ Pluto mission colleagues, and the target of their interplanetary expedition in the captivating documentary ' The Year of Pluto .' Stern has himself chronicled his trek across the twilight reaches of the star system in a stream of fascinating books, including Pluto and Charon: Ice Worlds on the Ragged Edge of the Solar System and Chasing New Horizons, and in a torrent of acclaimed papers . Scholar Stern predicts that if the White House's proposed death sentence for flotillas of pathfinding space missions is actually carried out, that would mark the decline and fall of NASA's planetary science breakthroughs, and the comparative rise of its competitors in the renewed space race of the 2020s. If NASA's funding and inter-planet journeys are decimated, he tells me, 'These cuts will absolutely destroy U.S. leadership in all the space sciences.' 'This is tragically misguided.' The potential death knell for an armada of space discovery missions has been reverberating not just across NASA, but also throughout the U.S. universities that help conceive or design these flights. 'Certainly termination of the New Horizons mission would be terrible,' says Kip Hodges , who as founding director of Arizona State University's School of Earth and Space Exploration helped transform the university into one of the top American space studies centers. 'This a real frontier mission at this point,' he tells me in an interview, 'delivering important new information about distant parts of our Sun's heliosphere.' Congress has the power to save NASA and its leading-edge robotic explorers across the solar system ... More (Illustration by Tobias Roetsch/Future Publishing via Getty Images) Future Publishing via Getty Images Professor Hodges , one of the top space scholars in the U.S., predicts that the Swords of Damocles now hanging above New Horizons and other new-frontier flights could still be lifted. If the White House plan to cut away at NASA and its revolutionary planetary scouting missions were enacted as is, he predicts, 'a great many folks in industry, the NASA labs, and academia will be disappointed.' Yet he adds that 'the budget for NASA evolves over several stages,' with the president's initial proposal just one of competing models—one that could be rejected as the Senate and House of Representatives look afresh at NASA's missions, goals and funding. After the twin chambers reach a consensus on reshaping NASA for the next phase of its evolution, Professor Hodges adds, 'Quite often, the appropriated budget is not the president's budget.' That means space aficionados across America who seek to overturn the president's capital sentence on NASA's boundary-breaking missions have a clear channel of recourse, Stern says. Would-be petitioners for a reprieve, he advises, 'should contact their elected representatives in Congress and tell them this is a huge mistake.'

Media advisory - Minister Solomon to participate in Toronto Tech Week 2025
Media advisory - Minister Solomon to participate in Toronto Tech Week 2025

Yahoo

time4 hours ago

  • Yahoo

Media advisory - Minister Solomon to participate in Toronto Tech Week 2025

TORONTO, June 22, 2025 /CNW/ - The Honourable Evan Solomon, Minister of Artificial Intelligence and Digital Innovation and Minister responsible for the Federal Economic Development Agency for Southern Ontario, will participate in a series of events, meetings and visits with Canada's AI ecosystem and business leaders for Toronto Tech Week 2025. Minister Solomon to participate in a site visit at Xanadu Date: Monday, June 23, 2025 Time: 11:00 am (ET) Note: Members of the media are asked to contact ISED Media Relations at media@ to receive event location details and confirm their attendance. Stay connected Find more services and information on the Innovation, Science and Economic Development Canada website. Follow Innovation, Science and Economic Development Canada on social media.X (Twitter): @ISED_CA, Facebook: Canadian Innovation, Instagram: @cdninnovation, LinkedIn: Innovation, Science and Economic Development Canada SOURCE Innovation, Science and Economic Development Canada View original content: Error in retrieving data Sign in to access your portfolio Error in retrieving data Error in retrieving data Error in retrieving data Error in retrieving data

Your Brain Emits a Secret Light That Scientists Are Trying to Read
Your Brain Emits a Secret Light That Scientists Are Trying to Read

Yahoo

time8 hours ago

  • Yahoo

Your Brain Emits a Secret Light That Scientists Are Trying to Read

Many of Earth's critters have the ability to emit a visible glow, but humans aren't usually considered among their number. This may not be entirely correct. Going all the way back to 1923, a number of studies have found humans luminesce in frequencies that would be visible if they weren't too faint for us to actually see. From the moment of conception until we shuffle off this mortal coil, we literally shine. It's controversial, absolutely, but it's possible that detecting these 'biophotons' could tell us a thing or two about what takes place beneath our skin. In a new study, a team of researchers led by biologist Hayley Casey of Algoma University in Canada has investigated the extremely weak glow of one lump of tissue in particular: the brain that resides inside the skull of every living human. They carefully recorded the faint glow of the human brain from outside the skull, and found that it changes according to what the brain is doing. This, they say, offers an exciting new possibility for gauging brain health: a yet-to-be-developed technique they call photoencephalography. "As the first proof-of-concept demonstration that ultraweak photon emissions (UPEs) from human brains can serve as readouts to track functional states, we measured and characterized photon counts over the heads of participants while they rested or engaged in an auditory perception task," they write in their paper. "We demonstrated that brain-derived UPE signals can be distinguished from background photon measures. Additionally, our results suggest that for a given task, the UPE count may reach a stable value." Everything in the Universe with a temperature higher than absolute zero – humans included – emits a type of infrared radiation called thermal radiation. When we talk about UPEs, it is a distinct phenomenon from thermal radiation. UPEs are emitted in near-visible to visible wavelength bands, and are the result of electrons emitting photons as they lose energy, a normal by-product of metabolism. Casey and her colleagues sought to conclusively distinguish brain UPEs from background radiation, and determine whether these UPEs exhibit patterns consistent with different levels of brain activity. They placed each of their study participants in a dark room. An electroencephalography (EEG) cap was placed on the participant's head to monitor their brain activity, and photomultiplier tubes were positioned around them to record any light emissions. These are extremely sensitive vacuum tubes that can detect even the very faintest light. Then, the participants were recorded at rest, and performing sound-based tasks (so they could do them in the dark). The results showed not just that UPEs are real and measurable even from outside the participants' heads – there was also a clear correlation between UPE output and the activity registered by the EEG cap. Future work, the researchers say, could delve into how neuroanatomy might impact UPE output, as well as how different activities manifest in patterns of UPEs, rather than just the two states of brain rest and brain activity. We also don't know if each individual has a UPE 'fingerprint' that would need to be recorded as a baseline against which to measure anomalous activity. "We view the current results as a proof-of-concept demonstration that patterns of human-brain-derived UPE signals can be discriminated from background light signals in darkened settings despite very low relative signal intensity," the researchers write. "Future studies may find success in using select filters and amplifiers to sieve and enhance UPE signal features from healthy and diseased brains." The paper has been published in Current Biology. Parkinson's Discovery Suggests We Could Have an FDA-Approved Treatment Already Microplastics Have a Concerning Effect on The Microbes in Our Gut Something in Your Poop May Predict an Imminent Death

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