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NASA, DARPA Will Test Nuclear Engine for Future Mars Missions

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Artist concept of Demonstration for Rocket to Agile Cislunar Operations (DRACO) spacecraft, which will demonstrate a nuclear thermal rocket engine. Nuclear thermal propulsion technology could be used for future NASA crewed missions to Mars.
Credits: DARPA

NASA and the Defense Advanced Research Projects Agency (DARPA) announced Tuesday a collaboration to demonstrate a nuclear thermal rocket engine in space, an enabling capability for NASA crewed missions to Mars.

NASA and DARPA will partner on the Demonstration Rocket for Agile Cislunar Operations, or DRACO, program. The non-reimbursable agreement designed to benefit both agencies, outlines roles, responsibilities, and processes aimed at speeding up development efforts. 

“NASA will work with our long-term partner, DARPA, to develop and demonstrate advanced nuclear thermal propulsion technology as soon as 2027. With the help of this new technology, astronauts could journey to and from deep space faster than ever – a major capability to prepare for crewed missions to Mars,” said NASA Administrator Bill Nelson. “Congratulations to both NASA and DARPA on this exciting investment, as we ignite the future, together.”

Using a nuclear thermal rocket allows for faster transit time, reducing risk for astronauts. Reducing transit time is a key component human missions to Mars, as longer trips require more supplies and more robust systems. Maturing faster, more efficient transportation technology will help NASA meet its Moon to Mars Objectives.

Other benefits to space travel include increased science payload capacity and higher power for instrumentation and communication. In a nuclear thermal rocket engine, a fission reactor is used to generate extremely high temperatures. The engine transfers the heat produced by the reactor to a liquid propellant, which is expanded and exhausted through a nozzle to propel the spacecraft. Nuclear thermal rockets can be three or more times more efficient than conventional chemical propulsion.

“NASA has a long history of collaborating with DARPA on projects that enable our respective missions, such as in-space servicing,” said NASA Deputy Administrator Pam Melroy. “Expanding our partnership to nuclear propulsion will help drive forward NASA’s goal to send humans to Mars.”

Under the agreement, NASA’s Space Technology Mission Directorate (STMD) will lead technical development of the nuclear thermal engine to be integrated with DARPA’s experimental spacecraft. DARPA is acting as the contracting authority for the development of the entire stage and the engine, which includes the reactor. DARPA will lead the overall program including rocket systems integration and procurement, approvals, scheduling, and security, cover safety and liability, and ensure overall assembly and integration of the engine with the spacecraft. Over the course of the development, NASA and DARPA will collaborate on assembly of the engine before the in-space demonstration as early as 2027. 

“DARPA and NASA have a long history of fruitful collaboration in advancing technologies for our respective goals, from the Saturn V rocket that took humans to the Moon for the first time to robotic servicing and refueling of satellites,” said Dr. Stefanie Tompkins, director, DARPA. “The space domain is critical to modern commerce, scientific discovery, and national security. The ability to accomplish leap-ahead advances in space technology through the DRACO nuclear thermal rocket program will be essential for more efficiently and quickly transporting material to the Moon and eventually, people to Mars.”

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The last nuclear thermal rocket engine tests conducted by the United States occurred more than 50 years ago under NASA’s Nuclear Engine for Rocket Vehicle Application and Rover projects.

“With this collaboration, we will leverage our expertise gained from many previous space nuclear power and propulsion projects,” said Jim Reuter, associate administrator for STMD. “Recent aerospace materials and engineering advancements are enabling a new era for space nuclear technology, and this flight demonstration will be a major achievement toward establishing a space transportation capability for an Earth-Moon economy.”

NASA, the Department of Energy (DOE), and industry are also developing advanced space nuclear technologies for multiple initiatives to harness power for space exploration. Through NASA’s Fission Surface Power project, DOE awarded three commercial design efforts to develop nuclear power plant concepts that could be used on the surface of the Moon and, later, Mars.

NASA and DOE are working another commercial design effort to advance higher temperature fission fuels and reactor designs as part of a nuclear thermal propulsion engine. These design efforts are still under development to support a longer-range goal for increased engine performance and will not be used for the DRACO engine. 

To learn more about STMD, please visit:

https://www.nasa.gov/spacetech

https://q5i.09c.myftpupload.com/category/science/

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That year LA declared it was at “Peak Car!”

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Peak Car
Los Angeles County Metropolitan Transportation Authority

Was there a time it was considered that “The City of Angeles,” had reached “Peak Car?”

I recently came across an article posted by the Metro Digital Resources Librarian on the Dorothy Peyton Gray Transportation Library and Archive web site run by Metro Los Angeles. The article talked about LA’s new obsession with the automobile and how it gained popularity, in the early 1920s.

Peak Car Era

Library researchers pointed out that notable resources concurred with this, including Scott L. Bottles’ Los Angeles and the Automobile: The Making of the Modern City, and Ashleigh Brilliant’s The Great Car Craze, How Southern California Collided with the Automobile in the 1920s.

The automobile was new and fresh, and also offered freedom to its owners, who realized that they could become more mobile and not rely solely on the massive LA street car network at the time.  The number of vehicle registrations in Los Angeles had quadrupled in just an eight-year period from 1914-1922.

“Automobile use exploded as the passenger vehicle transitioned from a hobbyist’s pursuit to a relatively affordable means of getting around the sprawling region and beyond.”

Metro Librarian found out what was happening on the public transit side of the story when they found an article published in Electric Railway Journal titled “California and Her Tractions, Part II.

MetroDigital Resource Librarian:

As one of several features titled “A Series of Articles on Salient Phases of the Electric Railway Situation,” author Edward Hungerford details the then current state of public transit in the Los Angeles area.

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And within that overview, he interviews Paul Shoup, Pacific Electric Railways president and vice-president of Southern Pacific Company.

Hungerford documents Pacific Electric’s earnings in a recent six-month period, and asks Shoup “for the real translation of these figures.”

Shoup responds by stating:

They mean that the peak of the competition of the automobile, publicly or privately owned or operated, has been reached out here — and passed. Not only is the rapidly rising cost of cars and tires and gasoline and oil beginning to deter the overenthusiastic motorists, but I think that the novelty of excessive motor riding also is rather wearing off. The hazards of driving on crowded highways are becoming more apparent and parking spaces in towns and cities more a question of doubt.

In addition to our great numbers of motor stage routes in every direction, we now have some 500,000 automobiles in California licensed for pleasure purposes, to which should be added the cars owned and operated by the 100,000 Easterners who come out here every winter. The competitive effect of all these cars has been, and still is, vast indeed. But we already can see in it a declining curve.

Yes, you read that right, Shoup declared that personal vehicle usage had peaked and that it was on the decline.

Shoup explains that Los Angeles Railway profits were consistent with those of Pacific Electric, but acknowledges that “increases in both operating cost and taxes had gone ahead a little more than proportionately.” But he intimates that the rising cost of automobile operation (gas, tires) means that cars will cease their encroachment into transit’s share of mobility.

MetroDigital Resource Librarian:

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This statement was part of an interview published in a national journal. Was he telling industry professionals what they wanted to hear? Did he want to assuage fears of rail employees that their jobs were going to disappear as more people purchased and used automobiles? Was he hoping that his perspective would turn into a self-fulfilling prophecy so he could remain atop Pacific Electric and Southern Pacific?

You can read the full article here: https://metroprimaryresources.info/when-los-angeles-was-declared-to-have-hit-peak-car-in-1920/15665/

https://stmdailynews.com/blog

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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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3 innovative ways to help countries hit by climate disasters, beyond a loss and damage fund

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People climb to the top of a bridge damaged when Cyclone Idai hit Mozambique in 2019. Andrew Renneisen/Getty Images

Erin Coughlan de Perez, Tufts University

These days, it’s hard to escape news stories discussing how climate change is contributing to extreme weather disasters, including the recent U.S. hurricanes. Aid agencies are increasingly worried about the widespread damage.

A growing question as these disasters worsen in a warming world is how to pay for recoveries, particularly in poorer countries that have contributed the least to climate change.

I am a climate scientist who researches disasters, and I work with disaster managers on solutions to deal with the increasing risk of extreme events. The usual sources of disaster aid funding haven’t come close to meeting the need in hard-hit countries in recent years. So, groups are developing new ways to meet the need more effectively. In some cases, they are getting aid to countries before the damage occurs.

Disaster aid funds aren’t meeting growing need

Countries have a few ways that they typically send money and aid to other countries that need help when disasters hit. They can send direct government-to-government aid, contribute to aid coordinated by the United Nations, or support disaster response efforts by groups like the International Red Cross and Red Crescent Movement.

However, the support from these systems is almost never enough.

In 2023, the amount of humanitarian funding through the U.N. was about US$22 billion. The U.N. Office for the Coordination of Humanitarian Affairs estimated that countries hit hard by disasters actually needed about $57 billion in U.N. humanitarian aid. This does not even include the costs borne directly by disaster-affected people and their governments.

https://datawrapper.dwcdn.net/LO7Uw/1

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To help address damages specifically from climate change, the global community agreed at the U.N. climate conference in 2022 to create a new method – a Loss and Damage Fund. Loss and damage is generally defined as consequences of climate change that go beyond what people are able to adapt to.

The goal of the fund is for countries that historically have done the most to cause climate change to provide funding to other countries that did little to cause it yet are experiencing increasing climate-related disasters.

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So far, however, the Loss and Damage Fund is tiny compared to the cost of climate-related disasters. As of late September 2024, total pledges to the Loss and Damage Fund were about US$700 million. According to one estimate, the costs directly attributable to climate change, including loss of life, are over $100 billion per year.

One goal of the 2024 U.N. climate conference, underway Nov. 11-22 in Azerbaijan, is to increase those contributions.

Sending aid before the disasters hit

In response to these growing needs, the disaster management community is getting creative about how it helps countries finance disaster risk reduction and response.

Traditionally, humanitarian funding arrives after a disaster happens, when photos and videos of the horrible event encourage governments to contribute financial support and a needs assessment has been completed.

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However, with today’s technology, it’s possible to forecast many climate-related disasters before they happen, and there is no reason for the humanitarian system to wait to respond until after the disaster happens.

A woman in a Red Cross vest speaks with villagers.
In 2015, the Uganda Red Cross used early storm forecasts to send workers to distribute thousands of water purification tablets, water storage containers and other items to people in rural areas likely to be flooded by the storm. Denis Onyodi/URCS-Climate Centre, CC BY-NC

A global network of aid groups and researchers I work with has been developing anticipatory action systems designed to make funding available to countries when an extreme event is forecast but before the disaster hits.

This can allow countries to provide cash for people to use for evacuation when a flood is forecast, open extra medical services when a heat wave is expected, or distribute drought-tolerant seeds when a drought is forecast, for example.

Insurance that pays out early to avoid harm

Groups are also developing novel forms of insurance that can provide predictable finance for these changing catastrophes.

Traditional insurance can be expensive and slow to assess individual claims. One solution is “index insurance” that pays out based on drought information without needing to wait to assess the actual losses.

African nations created an anticipatory drought insurance product that can pay out when the drought starts happening, without waiting for the end of the season to come and the crops to fail. This could, in theory, allow farmers to replant with a drought-resilient crop in time to avoid a failed harvest.

A smiling woman holds up a bowl of ground cassava. Bowls and storage bags of the food item surround her.
A woman in Ivory Coast prepares a dish made from manioc, or cassava, a drought-tolerant crop. Sia Kambou/AFP via Getty Images

Without insurance, disaster-affected people usually bear the costs of disaster. Therefore, experts recommend insurance as a critical part of an overall strategy for climate change adaptation.

Boosting social protection systems

Another promising area of innovation is the design of social services that can scale up when needed for extreme weather events.

These are called climate-smart social protection systems. For example, existing programs that provide food for low-income families can be scaled up during and after a drought to ensure that people have sufficient and nutritious food during the climate shock.

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This requires government coordination among the variety of social services offered, and it offers promise to support vulnerable communities in the face of the rising number of extreme weather events.

Future of the Loss and Damage Fund

To complement these innovative disaster risk finance mechanisms, aid from other countries is crucial, and the Loss and Damage Fund is a key part of that.

There are still many areas of debate around the U.N.’s Loss and Damage Fund and what counts as true financial support. There have been discussions over whether investing in a country’s resilience to future disasters counts, whether existing financial systems should be used to channel finance to countries in need, and what damages are truly beyond the limits to adaptation and qualify.

The new Loss and Damage Fund is only of a part of a mosaic of initiatives that is seeking to address climate disasters.

These novel mechanisms to finance disaster risk are exciting, but they ultimately need to be created in conjunction with investments in adaptation and resilience so that extreme weather events cause less damage when they happen. Communities will need to plant different crops, build flood drainage systems and live in adaptive buildings. Managing climate risk requires a variety of innovative solutions before, during and after disaster events.

Erin Coughlan de Perez, Professor of Climate Risk Management, Tufts University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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The Bridge is a section of the STM Daily News Blog meant for diversity, offering real news stories about bona fide community efforts to perpetuate a greater good. The purpose of The Bridge is to connect the divides that separate us, fostering understanding and empathy among different groups. By highlighting positive initiatives and inspirational actions, The Bridge aims to create a sense of unity and shared purpose. This section brings to light stories of individuals and organizations working tirelessly to promote inclusivity, equality, and mutual respect. Through these narratives, readers are encouraged to appreciate the richness of diverse perspectives and to participate actively in building stronger, more cohesive communities.

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Space and Tech

Blue Origin’s New Shepard NS-28: Aiming for the Stars on November 22nd

Blue Origin’s New Shepard NS-28 mission, launching on November 22, features a significant crewed aspect, promoting broader space access. The mission patch symbolizes the journey’s educational and inspirational goals. Join the excitement!

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Image Credit: Blue Origin

New Shepard 28

Blue Origin has once again captured the public’s imagination with the announcement of its ninth human flight, the NS-28 mission, set to launch from Launch Site One in West Texas on Friday, November 22. With the launch window opening at 9:30 AM CST (15:30 UTC), excitement is brewing as space enthusiasts and potential future astronauts gear up for another exhilarating journey into the cosmos.

One of the highlights of this mission is the crewed aspect, making it another significant step in Blue Origin’s mission to democratize access to space. Following the success of its previous flights, NS-28 promises to deliver an experience that will inspire and ignite passion for space exploration. The live webcast on BlueOrigin.com will commence at T-30 minutes, offering spectators a front-row seat to this groundbreaking event.

New Shepard 28
Image Credit: Blue Origin

The NS-28 Mission Patch: A Story of Meaning and Symbolism

Accompanying the NS-28 mission is a beautifully designed mission patch that encapsulates the spirit and purpose of this historic flight. Each element of the patch carries deep significance, painting a portrait of the crew and their aspirations in space.

  • Emily Calandrelli is represented by the color pink and a girl in signature pink overalls, acknowledging her influential role as a science communicator and advocate for space education.
  • For Sharon and Marc Hagle, this flight marks their second journey on New Shepard, a milestone aptly symbolized by the centerline in the “2,” fostering a sense of continuity and commitment to space travel.
  • The stars in the mission patch signify Austin Litteral’s enduring vision of humanity’s place among the stars, highlighting the adventurous spirit that drives our quest for knowledge beyond our planet.
  • At the bottom of the patch, a representation of people embodies J.D. Russell’s hope for future generations to expand their understanding of the universe, underscoring the mission’s educational and inspirational goals.
  • Lastly, the wolf in the crew capsule’s window stands as a tribute to Hank Wolfond, symbolizing the strength, courage, and tenacity that is required for exploration beyond our earthly confines.

Looking Ahead: The Future of Space Tourism and Exploration

As Blue Origin prepares for the NS-28 mission, more than just a flight is at stake. This mission represents a significant leap in commercial space travel and signifies a broader movement towards making space accessible and enjoyable for everyone. Each launch brings us closer to a future where experiencing space is a possibility for many, rather than just a select few.

With the countdown ticking down to November 22, stakeholders, space enthusiasts, and the general public alike are encouraged to tune in to the live webcast and partake in the excitement surrounding human spaceflight. Innovations in technology and a shared passion for exploration are paving the way for a new era of discovery—one where the stars are no longer out of reach.

Join us in celebrating the NS-28 mission—an emblem of human ingenuity, curiosity, and the indomitable spirit of exploration. See you on launch day—let’s reach for the stars together!

For more information about the crew, please see our previous blog post here

Or read the post from Blue Origin here.

Follow Blue Origin on X, Instagram, Facebook, LinkedIn, Threads, and YouTube, and sign up at BlueOrigin.com to stay updated on all mission details.

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The science section of our news blog STM Daily News provides readers with captivating and up-to-date information on the latest scientific discoveries, breakthroughs, and innovations across various fields. We offer engaging and accessible content, ensuring that readers with different levels of scientific knowledge can stay informed. Whether it’s exploring advancements in medicine, astronomy, technology, or environmental sciences, our science section strives to shed light on the intriguing world of scientific exploration and its profound impact on our daily lives. From thought-provoking articles to informative interviews with experts in the field, STM Daily News Science offers a harmonious blend of factual reporting, analysis, and exploration, making it a go-to source for science enthusiasts and curious minds alike. https://stmdailynews.com/category/science/


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