Lifeboat Foundation

Seattle-based Ultra Safe Nuclear Technologies (USNC-Tech) has developed a concept for a new Nuclear Thermal Propulsion (NTP) engine and delivered it to NASA. Claimed to be safer and more reliable than previous NTP designs and with far greater efficiency than a chemical rocket, the concept could help realize the goal of using nuclear propulsion to revolutionize deep space travel, reducing Earth-Mars travel time to just three months.

Because chemical rockets are already near their theoretical limits and electric space propulsion systems have such low thrust, rocket engineers continue to seek ways to build more efficient, more powerful engines using some variant of nuclear energy. If properly designed, such nuclear rockets could have several times the efficiency of the chemical variety. The problem is to produce a nuclear reactor that is light enough and safe enough for use outside the Earth’s atmosphere – especially if the spacecraft is carrying a crew.

According to Dr. Michael Eades, principal engineer at USNC-Tech, the new concept engine is more reliable than previous NTP designs and can produce twice the specific impulse of a chemical rocket. Specific impulse is a measure of a rocket’s efficiency.

SpaceX is a leader in aerospace innovation. The company was founded by Elon Musk in 2002 with the ultimate mission to make life multiplanetary. For over a decade, SpaceX teams have worked to develop technologically advanced rockets and spacecraft. Developing rockets comes with many challenges. SpaceX had a couple of failed missions in the early days. The company went from almost not making it to orbit to returning human spaceflight capabilities to the United States in 2020.

The company’s first rocket, Falcon 1, failed to attain Earth orbit three times: in March 2007 and August 2008, but in September 2008 SpaceX became the first American private company to send a liquid-fueled rocket into orbit. Despite the challenges, SpaceX pushed through until the fourth rocket launch reached orbit. A fourth failure “would have been absolutely game over,” Musk said at the International Astronautical Congress conference in 2017. “Fortunately, the fourth launch, which was … the last money that we had for Falcon 1 –that fourth launch worked. Or it would have been… that would have been it for SpaceX,” he said. The company was able to land a government contract from NASA when it reached orbit.

SpaceX then worked to develop an improved version of the rocket. In 2010, the company launched the Falcon 9, powered by nine Merlin 1D engines. Falcon 9 was designed so that its first-stage could be reused. Other companies use expendable rockets. SpaceX engineers accomplished developing the world’s first orbital-class rocket capable of returning from space to perform a controlled landing powered by its engines. Falcon 9 is capable of launching payload to orbit and landing soon after liftoff. In 2015 a Falcon 9 first-stage booster returned to Earth near its launch site for the first time, after several explosive landings (video below).

WASHINGTON — Axiom Space hopes to soon finalize its first commercial mission to the International Space Station, scheduled for late 2021, as it continues development of a commercial module for the station.

During a panel discussion at the International Astronautical Congress (IAC) Oct. 13, Michael Suffredini, president and chief executive of Axiom Space, said his company had lined up the customers for that first mission, a 10-day flight to the space station on a SpaceX Crew Dragon spacecraft scheduled for the fourth quarter of 2021.

“We have all of our customers identified and we’re about to finish their contracting,” he said. The company previously announced a contract with SpaceX for the flight and is “just about done” with a NASA contract for the mission.

Mind blowing reasons why Venus is far better, easier, cheaper, healthier, will be more fun, and is quicker to settle than Mars! Discover what an Allison Sphere is and how it can provide beautiful habitats in the Venusian atmosphere! Discover my Universal Harmony Habitat that can be used to live on the moon, Mars, or in an Allison Sphere. You will begin to understand how the Universal Harmony Habitat can solve a myriad of problems on Earth too. More to come on that later. So come with me — let’s go to Venus!!!

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Great new episode with the Smithsonian’s Jeremy R. Kinney. We discuss all aspects of how the seemingly mundane propeller drove the 20th Century’s revolution in aerospace and helped usher in an era of global warfare, travel, and trade.

Without the lowly propeller, global trade and commerce and freedom of movement as we knew it prior to Covid would have never had the opportunity to flourish. Special guest Jeremy R. Kinney, Chair of the Aeronautics Department at the Smithsonian Institution’s National Air and Space Museum in Washington, D.C., provides a fascinating narrative to how and why advances in aircraft propeller technology enabled aerospace to revolutionize global warfare, travel, and trade. Author of “Reinventing the Propeller,” Kinney and I discuss many underappreciated aspects of this aeronautical workhorse.

Continue reading “Episode 21 --- How Aircraft Propellers Drove The Aeronautical Revolution” »

Eight countries have signed the Artemis Accords, a set of guidelines surrounding the Artemis Program for crewed exploration of the moon. The United Kingdom, Italy, Australia, Canada, Japan, Luxembourg, the United Arab Emirates and the US are now all participants in the project, which aims to return humans to the moon by 2024 and establish a crewed lunar base by 2030.

This may sound like progress. Nations have for a number of years struggled with the issue of how to govern a human settlement on the moon and deal with the management of any resources. But a number of key countries have serious concerns about the accords and have so far refused to sign them.

Previous attempts to govern space have been through painstakingly negotiated international treaties. The Outer Space Treaty 1967 laid down the foundational principles for human space exploration – it should be peaceful and benefit all mankind, not just one country. But the treaty has little in the way of detail. The moon Agreement of 1979 attempted to prevent commercial exploitation of outer-space resources, but only a small number of states have ratified it – the US, China and Russia haven’t.

Morgan Stanley doubled its long-term valuation estimate for Elon Musk’s SpaceX on Thursday and is now expecting the company to be worth at least $100 billion due to its position in the growing space industry.

Firefly Aerospace currently plans for its maiden Alpha rocket launch to happen as early as Dec. 22, co-founder and CEO Tom Markusic told CNBC, as his company prepares for the next major milestone in its plan to offer a variety of space transportation services.

Markusic is confident in the launch date because of the “rigid” requirements of Vandenberg Air Force Base in California, where Firefly is finishing up work to prepare the launchpad at SLC-2. While “everything is susceptible to surprises,” with room in the schedule to launch as late as Jan. 31, Markusic said the “full gamut of rules” at Vandenberg means the company has put extra work into certification for Alpha’s first launch.

“We took the hard route to flight, and that was by going to a launch range that has very strict requirements,” Markusic said. “So our design has been highly vetted, as we have a lot of requirements that are put on us by the range and that makes the rocket ultimately more reliable.

“The mobile gravity suit is a small, untethered, and flexible intravehicular activity (IVA) suit,” the researchers wrote in their paper published in the Frontiers in Physiology journal.

The idea is to give astronauts maximum flexibility while on board a spacecraft, without reducing crew time. “With the gravity suit, astronauts will be able to float freely around the space station while adhering to their every day tasks,” the paper reads.

“The negative pressure is generated by its own portable vacuum system, ensuring full mobility, and user-control,” the paper reads.