Military Launch Contracts Unveiled, Historic Polar Spaceflight Ends

Welcome to Astronomy Daily, where we bring you the latest in space and astronomy news. I'm Anna, and I'm thrilled to be your guide through today's cosmic journey. Coming up on today's episode, we'll explore some major developments spanning the entire space sector. We'll look at how SpaceX Ula and Blue Origin are sharing a massive thirteen point five billion dollars in military launch contracts, marking a significant shift in national security space access. Then we'll follow the adventure of four space tourists who just completed a groundbreaking flight circling our planet above both poles, a true first in human spaceflight history. We'll also check in with the hardworking crew aboard the International Space Station, where cutting edge robotics, experiments and crucial medical research continue as they prepare to welcome new crewmates. Plus, we'll dive into fascinating astronomical research, including how scientists are essentially listening to stars through their vibrations to understand their inner working, and a jaw dropping discovery from the James Webb Space Telescope of an ancient galaxy that's challenging everything we thought we knew about galactic evolution. So strap in As we blast off into today's cosmic news roundup, The US Department of Defense has made a historic move in the space sector, awarding a combined thirteen point seven billion dollars in launch service contracts to SpaceX, United Launch Alliance, and Blue Origin. This landmark decision marks the first time three companies will share responsibility for launching high priority military and intelligence payloads, significantly reshaping the national security launch landscape. SpaceX emerged as the leading contractor in this arrangement, securing five point nine billion dollars in anticipated awards. ULA followed closely with five point four billion dollars, while Blue Origin secured nearly two point four billion dollars. Together, these aerospace giants are expected to conduct fifty four launches for the Pentagon between fiscal years twenty twenty five five and twenty twenty nine. General Chance Saltzman, chief of Space Operations for the US Space Force, emphasized the strategic importance of this investment, calling it the foundation of both economic prosperity and national security. These contracts fall under the National Security Space Launch Phase three Lane two procurement, which focuses specifically on complex missions to high energy orbits with enhanced security requirements. The distribution of these fifty four projected missions reflects the current capabilities and trust placed in each provider. SpaceX will carry out the Lion's share with twenty eight launches approximately sixty percent of the total. ULA will handle nineteen missions about thirty five percent, while Blue Origin is slated for seven launches. Interestingly, Blue Origins assignments are contingent on certification of its New Glen rocket, which has flown just once so far. This three provider approach represents a significant shift in the Pentagon strategy. The inclusion of Blue Origin introduces more competition into a market that SpaceX has dominated since the previous round of contracts in twenty twenty. Despite New Glen not yet being certified for national security missions, Space Force officials have expressed confidence that the rocket will be ready by the time Blue Origins assignments begin. The Phase three acquisition strategy employs a dual lane approach to ensure diversification. Lane one targets less risk averse, commercial like missions, while Lane two focuses on high stakes missions demanding elevated performance and security standards. Under these contracts, all three companies must meet stringent mission assurance requirements and participate in joint integration efforts with government teams. This development builds on the Pentagon's ongoing efforts to eliminate dependence on Russian made rocket engines while fostering a competitive domestic launch market capable of meeting evolving space requirements. The first round of mission assignments under these new contracts will be announced later this year, with launches expected to take place from fiscal year twenty twenty seven through twenty thirty two. Next, let's get a rap on the major story of the week. In a remarkable achievement for commercial spaceflight, four space tourists have safely returned to Earth after completing a groundbreaking orbital journey circling the globe above the North and South Poles. This historic mission, which concluded with a Pacific Ocean splash down this past Friday, marks both the first human spaceflight to traverse this unique polar route and the first Pacific splashdown for a crude spacecraft in five decades. Bitcoin entrepreneur Chun Wang privately chartered the SpaceX Dragon capsule for this extraordinary adventure, though he declined to reveal the price tag for the three point five day journey. Wang carefully selected his three fellow travelers, Norwegian filmmaker Jenica Mickelson, German robotics researcher Rebea Roga, and Australian polar guide Eric Phillips. Together, they experienced views of our planet that no human had witnessed before from them orbital perspective. The cruise Dragon capsule featured a specialized domed window providing breath taking three hundred sixty degree views of Earth's polar regions and everything in between. Roga described the polar landscapes as epic and likened them to another kind of desert that extends endlessly across the horizon. Meanwhile, Mickelson documented the journey extensively, bringing along professional camera equipment to capture their unprecedented vantage point. The journey wasn't without its challenges. All four passengers experienced space motion sickness after reaching orbit, according to Wang's social media updates. However, by the second day, they had adjusted to the weightless environment and eagerly opened the window cover right above the south pole to take in the extraordinary view. Beyond sight seeing, the crew conducted meaningful scientific work during their brief mission. They performed the first medical X rays in space as part of a test procedure, and completed two dozen additional science experiments. The mission was named Fram two, after the Norwegian sailing ship that carried explorers to the polar regions more than a century ago. In a touching tribute, a fragment of the original ship's wooden deck accompanied the crew to space. A SpaceX noted that this mission also marked a shift in their operational approach, as they've decided to switch future splash down sites from Florida to the Pacific Ocean for safety reasons. This ensures that any surviving pieces of the trunk section, which is jettison near the end of flight, will fall harmlessly into the ocean. Historically significant, the last space travelers to return from orbit to the Pacific were the three NASA astronauts from the nineteen seventy five Apollo Soyuz mission. This pioneering polar orbit journey represents another significant milestone in the rapidly evolving landscape of commercial space tourism, demonstrating the expanding capabilities and unique experiences now becoming available beyond traditional government space programs. Have you ever wondered what they do on the iss from day to day. Well, I'll tell you it's been a bustling week aboard the International Space Station. As the Expedition seventy two crew balances cutting edge research with preparation for upcoming crew changes, The Orbital Laboratory continues to serve as humanity's premiere microgravity research platform, with activities spanning from robotics to human physiology studies. NASA astronauts Don Pettitt and Jacksa's Takuya Onishi collaborated on an innovative robotics experiment using the station's astro b free flying robots. These cube shaped autonomous devices, equipped with tentacle like grippers featuring gecko inspired adhesive pads, were tested on their ability to detect, maneuver toward, and capture objects in microgravity. The technology demonstrates promising applications for future satellite servicing and space debris removal, critical capabilities as we work towards sustainable space operations. Meanwhile, the unique environment of space continues providing valuable insights into human health. NASA flight engineer Nicole Ayer's conducted exercise physiology research, pedaling on a specialized cycle while connected to sensors and breathing equipment. The data collected helps scientists understand how the cardiovascular system adapts to weightlessness and guides the development of more effective exercise protocols for long duration space missions. Another fascinating experiment involved oneche wearing a specialized thigh cuff designed to alter fluid distribution in the body. This research tackles one of spaceflight's persistent medical challenges, the fluid shift toward the head that can cause increased pressure in the eyes and brain. Airs assisted by using ultrasound equipment to measure blood flow in onehe's legs, evaluating the cuff's effectiveness. Maintaining the station's complex life support systems remains a priority. Air's Pettit and NASA ann maclain performed critical spacesuit maintenance in the quest airlock checking for oxygen leaks, replacing electronic components, and servicing life support gear. These routine but essential tasks ensure the suits remain ready for emergency situations or scheduled spacewalks. On the Russian segment, cosmonauts focused on environmental monitoring roscosmo's flight engineer Evan Wagner collected microbial samples from various station surfaces to better understand how microorganisms adapt to spaceflight conditions, research crucial for maintaining crew health during future long duration missions. Fellow cosmonaut Kyril Peskov measured carbon dioxide levels and performed maintenance on communications equipment. As the current crew continues their orbital work, a fresh trio of spacefarers is making final preparations for launch. NASA astronaut Johnny Kim and ros Cosmos cosmonauts Sergei Rizhakov and Alexander Zubritsky are scheduled to lift off aboard the Soyuz MS twenty seven spacecraft on April eighth from the Baikonur Cosmodrome in Kazakhstan. Following a three hour journey to catch up with the station, they'll dock to the Prishaal module and begin an eight month scientific mission. Meanwhile, station commander Alexei Ovchinin is readying the Soyuz MS twenty six spacecraft for its return journey on April nineteenth, when he'll bring Wagner and Pettit back to Earth after their extended stay in orbit. This carefully choreographed crew rotation ensures continuous human presence aboard our outpost in space, maintaining the unbroken chain of occupation that now extends beyond two decades. Next up. Today, stars don't just shine, They hum, with hidden vibrations that could unlock secrets about their inner workings. Scientists have discovered a fascinating new method to study what they call stellar quakes, which are ripples of gas on a star surface that offer tantalizing clues about what lies beneath. These stellar quakes function remarkably similarly to earthquakes here on our planet. When hot gas rises, cools, and sinks in a churning cycle within a star's convective envelope, the turbulent outer layer, it creates vibrations that propagate throughout the entire stellar body. By detecting subtle variations in a star's brightness, astronomers can identify these acoustic oscillations. Stellar quakes happen in most stars that have a bubbling outer layer, like a pot of boiling water, explains Claudiu Raeus, who conducted the research at the University of New South Wales. These bubbles of hot gas rise and burst at the surface, sending ripples through the entire star. Just as each musical instrument produces its own distinctive sound. Each star vibrates with unique resonant frequencies determined by its internal structure and physical properties. Larger stars produce deeper, slower vibrations, while smaller stars vibrate at higher pitches. By analyzing specific aspects of these vibrations, such as what scientists call small frequency spacing, researchers can estimate a star's hydrogen fuel reserves, essentially determining how far along it is in its life cycle. The research team focused on measuring stellar quakes in twenty seven stars from Messia sixty seven, an open cluster containing over five hundred stars with an age similar to our sun. This cluster offered an ideal laboratory since it contains many stars at different evolutionary stages but with similar chemical compositions. What made their findings particularly exciting was the discovery of a stalling frequency, a point where a star's vibrations stop changing and repeat the same note. This stalling correlates with the lower boundary of the star's convective envelope, providing astronomers with a powerful new diagnostic tool to estimate stellar masses and ages. With improved precision, stars are like fossil records that carry information about the environments in which they formed, noted reyes. By studying them, astronomers can piece together the story of our galaxy. This breakthrough in stellar seismology promises to enhance our understanding of stellar evolution in galactic history. By decoding the subtle music of the stars, scientists are developing a more accurate cosmic timeline and gaining insights into the fundamental processes that drive stellar life cycles, including what might eventually happen to our own sun. Finally, today, let's check in with an old friend. The James Web Space Telescope has made another groundbreaking discovery, uncovering a colossal spiral galaxy that's challenging our understanding of galactic evolution. Nicknamed Big Wheel, this enormous galaxy existed just two billion years after the Big Bang, during what should have been the cosmic equivalent of childhood for most galaxies. The discovery comes from astronomers at the University of Milano Bikoca, who found Big Wheel near a quasar, an extremely powerful and active supermassive black hole located a staggering eleven point seven billion light years away. This ancient galaxy earned its nickname from both its impressive size and remarkably rotation. What makes Big Wheel so extraordinary is its scale and maturity. It's approximately five times more massive than our own Milky Way and stretches across one hundred thousand light years. Using the telescope's near infrared spectrograph, researchers confirmed that Big Wheel is a fully formed, rotating disc with characteristics typically found only in much more developed galaxies. The galaxy's rotation curve shows a pattern consistent with mature spiral galaxies we observe today. Its velocity increases as you move outward from the center, reaching several hundred miles per second, remarkably similar to galaxies that have had billions more years to develop. This suggests that despite its youth, Big Wheel was already behaving like a fully mature galaxy during an era when most galaxies were expected to be small and in their earliest developmental stages. This galaxy is spectacular for being among the largest spiral galaxies ever found, which is unprecedented for this early era of the uear universe, explains Charles' Stitel, the studies lead author and astronomy professor at Caltech, so how did Big Wheel form so quickly. One clue may lie in its cosmic neighborhood. The galaxy resides in an extraordinarily dense region of space where galaxy concentrations are more than ten times higher than the cosmic average. This crowded environment may have provided ideal conditions for accelerated growth through efficient gas secretion and frequent mergers with other gas rich galaxies. We think this may open the door to understanding how some galaxies were able to bypass the usual slow process of star formation and grow to enormous sizes in the early universe, notes study co author Sebastiano Cantalupo. Big Wheel's existence presents a significant challenge to current cosmological models, which don't predict galaxies of this size and mass so early in the universe's history. The discovery suggests that, under certain conditions, galaxy formation and might not be the gradual process scientists previously thought. Instead, some galaxies may experience dramatic growth spurts and environments rich with the necessary building materials. As astronomers continue studying this cosmic outlier, they may need to adjust their models to account for these accelerated development pathways. Big Wheel stands as a testament to the Universe's ability to surprise us, even as our observational capabilities reach unprecedented levels of sophistication. And that wraps up today's episode of Astronomy Daily. From SpaceX securing military launch contracts to groundbreaking space tourism over the Poles, from cutting edge robotics research on the ISS, to the discovery of stellar quakes helping us understand stars, and finally to the astonishing Big Wheel Galaxy challenging our understanding of cosmic evolution. The universe continues to amaze and surprise us. I hope these stories have sparked your curiosity about the vastness above us US and the incredible scientific endeavors working to understand it. There's always something new to discover in the cosmos, and we'll be here to bring those discoveries right to you. I'm Anna, and it's been my pleasure being your host today. 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