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Venus Aerospace Achieves Milestone in Hypersonic Propulsion with NASA Collaboration

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Houston, Texas-based Venus Aerospace continues to push the boundaries of aerospace innovation with its recent achievement in hypersonic propulsion technology. In collaboration with NASA’s Marshall Space Flight Center, the pioneering company has successfully conducted one of the longest sustained tests of a rotating detonation rocket engine (RDRE).

hypersonic propulsion

Image credit: Venus Aerospace


The RDRE operates by igniting its fuel and oxidizer in a circular motion within a ring-shaped channel. This unique method creates shockwaves that sustain a continuous combustion reaction, offering a more efficient propulsion system compared to traditional engines.


Venus Aerospace’s milestone test showcased the engine’s capabilities by achieving a sustained run of four minutes, demonstrating flight-like performance. This accomplishment stands out significantly, considering that most experimental engine tests of this nature typically last for only a few seconds.

Dr. Andrew Duggleby, CTO and co-founder of Venus Aerospace, emphasized the company’s strong belief in the performance advancements that RDREs offer for hypersonic and space applications. He also credited the partnership with NASA as instrumental in advancing this groundbreaking technology.

This achievement underscores Venus Aerospace’s commitment to driving innovation in aerospace technology. The successful test not only marks a significant step forward in the development of reusable hypersonic flight platforms but also holds promise for revolutionizing propulsion systems in both hypersonic and space exploration.

As Venus Aerospace continues to make strides in hypersonic propulsion, its collaboration with NASA and other partners positions the company at the forefront of cutting-edge aerospace technology. With this recent accomplishment, Venus Aerospace reinforces its position as a key player in the pursuit of advanced hypersonic and space propulsion systems.

https://www.space.com/venus-aerospace-hotfire-hypersonic-engine

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  • Rod Washington

    Rod: A creative force, blending words, images, and flavors. Blogger, writer, filmmaker, and photographer. Cooking enthusiast with a sci-fi vision. Passionate about his upcoming series and dedicated to TNC Network. Partnered with Rebecca Washington for a shared journey of love and art. View all posts


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Rod: A creative force, blending words, images, and flavors. Blogger, writer, filmmaker, and photographer. Cooking enthusiast with a sci-fi vision. Passionate about his upcoming series and dedicated to TNC Network. Partnered with Rebecca Washington for a shared journey of love and art.

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Francis − a pope who cared deeply for the poor and opened up the Catholic Church

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Pope Francis during the Palm Sunday Mass at St. Peter’s Square on April 2, 2023, in Vatican City. Antonio Masiello/Getty Images
Mathew Schmalz, College of the Holy Cross Pope Francis, the Catholic Church’s first Latin American pontiff, has died, the Vatican announced on April 21, 2025. He was 88. Francis had served as pope for 12 eventful years, after being elected on March 13, 2013 after the surprise resignation of Benedict XVI. Prior to becoming pope, he was Jorge Mario Bergoglio, archbishop of Buenos Aires, and was the first person from the Americas to be elected to the papacy. He was also the first pope to choose Francis as his name, thus honoring St. Francis of Assisi, a 13th-century mystic whose love for nature and the poor have inspired Catholics and non-Catholics alike. Pope Francis chose not to wear the elaborate clothing, like red shoes or silk vestments, associated with other popes. As a scholar of global Catholicism, however, I would argue that the changes Francis brought to the papacy were more than skin deep. He opened the church to the outside world in ways none of his predecessors had done before.

Care for the marginalized

Pope Francis reached out personally to the poor. For example, he turned a Vatican plaza into a refuge for the homeless, whom he called “nobles of the street.”
A smiling young man, dressed in black, poses for a photo.
The Argentinian Jorge Mario Bergoglio, ordained for the Jesuits in 1969 at the Theological Faculty of San Miguel. Jesuit General Curia via Getty Images
He washed the feet of migrants and prisoners during the traditional foot-washing ceremony on the Thursday before Easter. In an unprecedented act for a pope, he also washed the feet of non-Christians. He encouraged a more welcoming attitude toward gay and lesbian Catholics and invited transgender people to meet with him at the Vatican. On other contentious issues, Francis reaffirmed official Catholic positions. He labeled homosexual behavior a “sin,” although he also stated that it should not be considered a crime. Francis criticized gender theory for “blurring” differences between men and women.
How the next pope will be picked.
While he maintained the church’s position that all priests should be male, he made far-reaching changes that opened various leadership roles to women. Francis was the first pope to appoint a woman to head an administrative office at the Vatican. Also for the first time, women were included in the 70-member body that selects bishops and the 15-member council that oversees Vatican finances. He appointed an Italian nun, Sister Raffaella Petrini, as President of the Vatican City.
Pope Francis holding on to a railing as he greets people.
Pope Francis in St. Peter’s Square on April 18, 2022. Stefano Spaziani/Mondadori Portfolio via Getty Images

Not shy of controversy

Some of Francis’ positions led to opposition in some Catholic circles. One such issue was related to Francis’ embrace of religious diversity. Delivering an address at the Seventh Congress of Leaders of World and Traditional Religions in Kazakhstan in 2022, he said that members of the world’s different religions were “children of the same heaven.” While in Morocco, he spoke out against conversion as a mission, saying to the Catholic community that they should live “in brotherhood with other faiths.” To some of his critics, however, such statements undermined the unique truth of Christianity. During his tenure, the pope called for “synodality,” a more democratic approach to decision making. For example, synod meetings in November 2023 included laypeople and women as voting members. But the synod was resisted by some bishops who feared it would lessen the importance of priests as teachers and leaders. In a significant move that will influence the choosing of his successor, Pope Francis appointed more cardinals from the Global South. But not all Catholic leaders in the Global South followed his lead on doctrine. For example, African bishops publicly criticized Pope Francis’ December 2023 ruling that allowed blessings of individuals in same sex couples. His most controversial move was limiting the celebration of the Mass in the older form that uses Latin. This reversed a decision made by Benedict XVI that allowed the Latin Mass to be more widely practiced. Traditionalists argued that the Latin Mass was an important – and beautiful – part of the Catholic tradition. But Francis believed that it had divided Catholics into separate groups who worshiped differently. This concern for Catholic unity also led him to discipline two American critics of his reforms, Bishop Joseph Strickland of Tyler, Texas, and Cardinal Raymond Burke. Most significantly, Carlo Maria Viganò, the former Vatican ambassador, or nuncio, to the United States was excommunicated during Francis’ tenure for promoting “schism.” Recently, Pope Francis also criticized the Trump administration’s efforts to deport migrants. In a letter to US Bishops, he recalled that Jesus, Mary and Joseph had been emigrants and refugees in Egypt. Pope Francis also argued that migrants who enter a country illegally should not be treated as criminals because they are in need and have dignity as human beings.

Writings on ‘the common good’

In his official papal letters, called encyclicals, Francis echoed his public actions by emphasizing the “common good,” or the rights and responsibilities necessary for human flourishing.
Several people seated in a row watch as the pope washes the feet of one of them.
Pope Francis washes the foot of a man during the foot-washing ritual at a refugee center outside of Rome on March 24, 2016. L’Osservatore Romano/Pool Photo via AP
His first encyclical in 2013, Lumen Fidei, or “The Light of Faith,” sets out to show how faith can unite people everywhere. In his next encyclical, Laudato Si’, or “Praise Be to You,” Francis addressed the environmental crisis, including pollution and climate change. He also called attention to unequal distribution of wealth and called for an “integral ecology” that respects both human beings and the environment. His third encyclical in 2020, Fratelli Tutti, or “Brothers All,” criticized a “throwaway culture” that discards human beings, especially the poor, the unborn and the elderly. In a significant act for the head of the Catholic Church, Francis concluded by speaking of non-Catholics who have inspired him: Martin Luther King Jr., Desmond Tutu and Mahatma Gandhi. In his last encyclical, Dilexit Nos, or “He Loved Us,” he reflected on God’s Love through meditating on the symbol of the Sacred Heart that depicts flames of love coming from Jesus’ wounded heart that was pierced during the crucifixion. Francis also proclaimed a special “year of mercy” in 2015-16. The pope consistently argued for a culture of mercy that reflects the love of Jesus Christ, calling him “the face of God’s mercy.”

A historic papacy

Francis’ papacy has been historic. He embraced the marginalized in ways that no pope had done before. He not only deepened the Catholic Church’s commitment to the poor in its religious life but also expanded who is included in its decision making. The pope did have his critics who thought he went too far, too fast. And whether his reforms take root depends on his successor. Among many things, Francis will be remembered for how his pontificate represented a shift in power in the Catholic Church away from Western Europe to the Global South, where the majority of Catholics now live.The Conversation Mathew Schmalz, Professor of Religious Studies, College of the Holy Cross This article is republished from The Conversation under a Creative Commons license. Read the original article.

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Trump is stripping protections from marine protected areas – why that’s a problem for fishing’s future, and for whales, corals and other ocean life

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The coral reefs of Palmyra Atoll, part of Pacific Islands Heritage Marine National Monument, provide nurseries for many fish species. Andrew S. Wright/U.S. Fish and Wildlife Service via Flickr, CC BY-SA
David Shiffman, Arizona State University The single greatest threat to the diversity of life in our oceans over the past 50 years, more than climate change or plastic pollution, has been unsustainable fishing practices. In much of the ocean, there is little to no regulation or oversight of commercial fishing or other human activities. That’s part of the reason about a tenth of marine plant and animal species are considered threatened or at risk. It’s also why countries around the world have been creating marine protected areas. These protected areas, covering over 11.6 million square miles (30 million square kilometers) in 16,000 locations, offer refuge away from human activities for a wide variety of living creatures, from corals to sea turtles and whales. They give fish stocks a place to thrive, and those fish spread out into the surrounding waters, which helps fishing industries and local economies. In the U.S., however, marine protection is being dismantled by President Donald Trump.
A map shows many marine protected areas around the world.
Marine protected areas as of 2022. Fully or highly protected areas represented less than 3% of the ocean, according to the Marine Protection Atlas. Marine Conservation Institute via Wikimedia Commons, CC BY-SA
Trump issued a proclamation on April 17, 2025, titled “Unleashing American commercial fishing in the Pacific,” ordering the removal of key protections to allow commercial fishing in parts of a nearly-500,000-square-mile marine protected area called the Pacific Island Heritage National Marine Monument. He also called for a review of all other marine national monuments to decide if they should be opened to commercial fishing too. In addition, the Trump administration is proposing to redefine “harm” under the Endangered Species Act in a way that would allow for more damage to these species’ habitats. I’m a marine biologist and scuba diver, and it’s no accident that all my favorite dive sites are within marine protected areas. I’ve found what scientific studies from across the world show: Protected areas have much healthier marine life populations and healthier ecosystems.

What’s at risk in the Pacific

The Pacific Island Heritage National Marine Monument, about 750 miles west of Hawaii, is dotted by coral reefs and atolls, with species of fish, marine mammals and birds rarely found anywhere else. It is home to protected and endangered species, including turtles, whales and Hawaiian monk seals. Palmyra Atoll and Kingman Reef, both within the area, are considered among the most pristine coral reefs in the world, each providing habitats for a wide range of fish and other species. These marine species are able to thrive there and spread out into the surrounding waters because their habitats have been protected.
A tour of several marine protected areas and their inhabitants in 2016.
President George W. Bush, a conservative Republican, created this protected area in 2009, restricting fishing there, and President Barack Obama later expanded it. Trump, whose administration has made no secret of its aim to strip away environmental protections across the country’s land and waters, is now reopening much of the marine protected area to industrial-scale fishing.

The risks from industrial fishing

When too many fish are killed and too few young fish are left to replace them, it’s considered overfishing, and this has become a growing problem around the world. In 1974, about 10% of the world’s fish stocks were overfished. By 2021, that number had risen to 37.7%, according to the United Nations Food and Agriculture Organization’s annual State of Fisheries and Aquaculture Report.
A net lays over the top of a coral reef. A diver is in the background.
A fishing net caught on a coral reef can destroy habitat. Kampee Patisena/Moment/Getty Images
Modern industrial-scale fishing practices can also harm other species. Bycatch, or catching animals that fishermen don’t want but are inadvertently caught up in nets and other gear, is a threat to many endangered species. Many seabirds, sea turtles and whales die this way each year. Some types of fishing gear, such as trawls and dredges that drag along the sea floor to scoop up sea life, can destroy ocean habitat itself. Without regulations or protected areas, fishing can turn into a competitive free-for-all that can deplete fish stocks.

How marine protected areas protect species

Marine protected areas are designed to safeguard parts of the ocean from human impacts, including offshore oil and gas extraction and industrial fishing practices. Studies have found that these areas can produce many benefits for both marine life and fishermen by allowing overfished species to recover and ensuring their health for the future. A decade after Mexico established the Cabo Pulmo protected area, for example, fish biomass increased by nearly 500%.
How marine protected areas help marine life and local economies.
Successful marine protected areas tend to have healthier habitats, more fish, more species of fish, and bigger fish than otherwise-similar unprotected areas. Studies have found the average size of organisms to be 28% bigger in these areas than in fished areas with no protections. How many babies a fish has is directly related to the size of the mother. All of this helps create jobs through ecotourism and support local fishing communities outside the marine protected area. Marine protected areas also have a “spillover effect” – the offspring of healthy fish populations that spawn inside these areas often spread beyond them, helping fish populations outside the boundaries thrive as well. Ultimately, the fishing industry benefits from a continuing supply. And all of this happens at little cost.

A need for more protected areas, not fewer

Claims by the Trump administration that marine protected areas are a heavy-handed restriction on the U.S. fishing industry do not hold water. As science and my own experience show, these refuges for sea life can instead help local economies and the industry by allowing fish populations to thrive. For the future of the planet’s whales, sea turtles, coral reefs and the health of fishing itself, scientists like me recommend creating more marine protected areas to help species thrive, not dismantling them.The Conversation David Shiffman, Faculty Research Associate in Marine Biology, Arizona State University This article is republished from The Conversation under a Creative Commons license. Read the original article.

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US earthquake safety relies on federal employees’ expertise

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The 6.9 magnitude Loma Prieta earthquake near San Francisco in 1989 caused about $6.8 billion in damage and 63 deaths. J.K. Nakata/U.S. Geological Survey
Jonathan P. Stewart, University of California, Los Angeles and Lucy Arendt, St. Norbert College Earthquakes and the damage they cause are apolitical. Collectively, we either prepare for future earthquakes or the population eventually pays the price. The earthquakes that struck Myanmar on March 28, 2025, collapsing buildings and causing more than 3,000 deaths, were a sobering reminder of the risks and the need for preparation. In the U.S., this preparation hinges in large part on the expertise of scientists and engineers in federal agencies who develop earthquake hazard models and contribute to the creation of building codes designed to ensure homes, high-rises and other structures won’t collapse when the ground shakes. Local communities and states decide whether to adopt building code documents. But those documents and other essential resources are developed through programs supported by federal agencies working in partnership with practicing engineers and earthquake experts at universities. This essential federal role is illustrated by two programs that we work closely with as an earthquake engineer and a disaster management expert whose work focuses on seismic risk.

Improving building codes

First, seismologists and earthquake engineers at the U.S. Geological Survey, or USGS, produce the National Seismic Hazard Model. These maps, based on research into earthquake sources such as faults and how seismic waves move through the earth’s crust, are used to determine the forces that structures in each community should be designed to resist. A steering committee of earthquake experts from the private sector and universities works with USGS to ensure that the National Seismic Hazard Model implements the best available science.
Map shows the highest risk areas in Alaska, the Pacific Coast, Mountain West and Midwest. But strong earthquakes hit elsewhere, too.
In this 2023 update of the national seismic risk map, red areas have the greatest chance of a damaging earthquake occurring within 100 years. USGS
Second, the Federal Emergency Management Agency, FEMA, supports the process for periodically updating building codes. That includes supporting the work of the National Institute of Building Sciences’ Provisions Update Committee, which recommends building code revisions based on investigations of earthquake damage. More broadly, FEMA, the USGS, the National Institute of Standards and Technology and the National Science Foundation work together through the National Earthquake Hazards Reduction Program to advance earthquake science and turn knowledge of earthquake risks into safer standards, better building design and education. Some of those agencies have been threatened by potential job and funding cuts under the Trump administration, and others face uncertainty regarding continuation of federal support for their work. It is in large part because of the National Seismic Hazard Model and regularly updated building codes that U.S. buildings designed to meet modern code requirements are considered among the safest in the world, despite substantial seismic hazards in several states. This paradigm has been made possible by the technical expertise and lack of political agendas among the federal staff. Without that professionalism, we believe experts from outside the federal government would be less likely to donate their time. The impacts of these and other programs are well documented. We can point to the limited fatalities from U.S. earthquakes such as the 1989 Loma Prieta earthquake near San Francisco, the 1994 Northridge earthquake in Los Angeles and the 2001 Nisqually earthquake near Seattle. Powerful earthquakes in countries lacking seismic preparedness, often due to lack of adoption or enforcement of building codes, have produced much greater devastation and loss of life.

The US has long relied on people with expertise

These programs and the federal agencies supporting them have benefited from a high level of staff expertise because hiring and advancement processes have been divorced from politics and focused on qualifications and merit. This has not always been the case. For much of early U.S. history, federal jobs were awarded through a patronage system, where political loyalty determined employment. As described in “The Federal Civil Service System and The Problem of Bureaucracy,” this system led to widespread corruption and dysfunction, with officials focused more on managing quid pro quo patronage than governing effectively. That peaked in 1881 with President James Garfield’s assassination by Charles Guiteau, a disgruntled supporter who had been denied a government appointment. The passage of the Pendleton Act by Congress in 1883 shifted federal employment to a merit-based system. This preference for a merit-based system was reinforced in the Civil Service Reform Act of 1978. It states as national policy that “to provide the people of the United States with a competent, honest, and productive workforce … and to improve the quality of public service, Federal personnel management should be implemented consistent with merit system principles.” The shift away from a patronage system produced a more stable and efficient federal workforce, which has enabled improvements in many critical areas, including seismic safety and disaster response.

Merit-based civil service matters for safety

While the work of these federal employees often goes unnoticed, the benefits are demonstrable and widespread. That becomes most apparent when disasters strike and buildings that meet modern code requirements remain standing. A merit-based civil service is not just a democratic ideal but a proven necessity for the safety and security of the American people, one we hope will continue well into the future. This can be achieved by retaining federal scientists and engineers and supporting the essential work of federal agencies. This article, originally published March 31, 2025, has been updated with the rising death toll in Myanamar.The Conversation Jonathan P. Stewart, Professor of Engineering, University of California, Los Angeles and Lucy Arendt, Professor of Business Administration Management, St. Norbert College This article is republished from The Conversation under a Creative Commons license. Read the original article.
 

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