Lifeboat Foundation

Scientists think Voyager 2 spotted a massive magnetic bubble pulling gas out of Uranus’ atmosphere.

By Bill D’Zio Originally published on www.westeastspace.com

Parachutes are plaguing space programs. SpaceX doesn’t like Parachutes. They are difficult to design, hard to package, and easy to damage. The larger the mass of the spacecraft, the more effort to slow down. Larger, more efficient, complex parachute systems are needed. Several failures have hit the industry over the last few years, including SpaceX Crew Dragon, ESA ExoMars, Boeing CST-100, and the NASA Orion to name a few.

How do parachutes work and why are they hard?

The idea of a parachute is simple. All falling objects fall the same when under the same conditions… that is so long as no outside force is exerted on it. So two objects dropped from the same altitude, one a feather and hammer will fall equally. Don’t believe me? NASA tested it on the Moon. During Apollo 15 moon walk, Commander David Scott performed a live demonstration for the television cameras. Commander Scott did the Apollo 15 Hammer and Feather test. He held out a geologic hammer and a Falcon feather and dropped them at the same time. Because there is not an atmosphere on the Moon, they were essentially in a vacuum. With no air resistance force, the feather fell at the same rate as the hammer. Ironically, Apollo 15 had a second demonstration of falling objects when one of the parachutes failed to function as planned.

On Earth, and any other planet with an atmosphere, air acts as a resistance force for an object moving through it. We can get more air resistance force by increasing the surface area. Depending on the shape of the object, it’s orientation, and the amount of resistance will increase, and therefore slow the object down. Unbalanced and uncorrected resistance can cause the object to start to turn, twist and tumble. A parachute system is deployed to generate air resistance from the atmosphere. (note that the thicker the atmosphere the more resistance) Parachutes designed for use on Earth will not be the same as a parachute designed for Mars.

Continue reading “This is why Elon Musk wanted to avoid Parachutes” »

The bubble concept could explain one of the strangest mysteries plaguing astrophysics: Why can’t we tell how fast the universe is expanding?

By Bill D’Zio March 25, 2020

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Part 2 of the Life in Space with COVID19 we will delve into Crew demo-2 where NASA and SpaceX are planning a launch within two months. There are a lot of pre-launch milestones and activities to cover to ensure a safe flight for the Astronauts. If anything goes wrong, there are lives at stake. Now NASA and SpaceX have to contend with another potential setback, COVID19 pandemic. (Click here for part I)

The SpaceX Crew Dragon spacecraft for Demo-2 arrived at the launch site on Feb. 13, 2020. Photo credit: SpaceX

In Part I of why COVID19 pandemic is bad timing for the Space industry, we covered that issues happen because the relationship between complexity, risk, schedule and cost for space missions was not balanced.

Continue reading “COVID19 Impact Part II – SpaceX , SLS and NASA” »

Electric dipole propulsion bigsmile

One reason we look so often at sail technologies in these pages is that they offer us ways of leaving the propellant behind. But even as we enter the early days of solar sail experimentation in space, we look toward ways of improving them by somehow getting around their need for solar photons. Robert Zubrin’s work with Dana Andrews has helped us see how so-called magnetic sails (magsails) could be used to decelerate a craft as it moved into a destination system. Now Zubrin looks at moving beyond both this and solar wind-deflecting electric sails toward an ingenious propellantless solution. Zubrin presented the work at last April’s Breakthrough Discuss meeting, and today he fills us in on its principles and advantages. Read on for a look at a form of enhanced electric sail the author has christened the Dipole Drive.

by Robert Zubrin

Continue reading “The Dipole Drive: A New Concept for Space Propulsion” »

By Bill D’Zio March 24, 2020 (Originally posted on www.westeastspace.com)

WestEastSpace mapped out NASA locations on a map of COVID19 impacted areas of USA from www.usafacts.org as of March 23rd, 2020With the launch window for NASA’s Mars Perseverance rover opening in a little less than four months, there are nearly daily pre-launch milestones to complete the rover pre flight activities at the Kennedy Space Center in Cape Canaveral, Florida. Tight schedules on complex missions usually do not mix well. Now NASA has to contend with another challenge. COVID19.

NASA Leadership Assessing Mission Impacts of Coronavirus

The world has come to a standstill and is in the grasps of the COVID-19. The world stock markets have come crashing down 30% as supply chains and companies attempt to deal with government response and public fear. Airlines and hotels have had to contend with decreased travel and lodging requirements. Logistics is impacted as factories in various countries deal with increased difficulty and requirements to obtain goods. Factories are closed leading to shortages for truckers, material movers, cargo agents, and other occupations directly involved in moving goods. Companies shift to working remotely in an attempt to comply with government guidance in attempts to minimize the impact of the virus. One Mars mission has already been sidelined because of COVID19. NASA also needs to contend with these challenges.

Continue reading “Coronavirus Pandemic Impact on Space Programs Part I” »

The emergence of the novel coronavirus and its associated disease, COVID-19, has led to a global pandemic and a call for individuals, in the name of overall public health and an attempt to prevent national medical systems from being overwhelmed with too many patients at once, to self-isolate, self-quarantine, and practice social distancing. Many of us are confronted, for perhaps the only time in our lives, with an uncertain span of time in solitude.

Although this is the first time we’ve seen this particular phenomenon, social distancing isn’t a new invention. Humans have always had good reasons to withdraw from society, often for the greater good. Among the champions of isolation and social distancing are astronauts and cosmonauts—including the late Al Worden—whose time in space has often been spent in extended periods of cramped loneliness, away from family and friends. They can serve as inspiration in these difficult times.

As a cultural anthropologist, my research focuses on human behavior, particularly types of behavior shared by groups, and it is clear that social distancing is unusual. Human beings are gregarious creatures and we do tend to be found in “corporate bodies,” ranging from small bands of 30 to 50 people all the way up to huge cities filled with millions. In band societies, everyone knows everyone else and there’s generally shared work, shared play, and lots of shared gossip. In larger societies, where we may be surrounded by virtual strangers, celebrities seem to fill in as the people everyone knows, giving us membership in a community where celebrities are “shared points of reference” (Hermes and Kooijmann 2016). I may not know you well, but we can probably talk to each other about Sigourney Weaver and Tom Hanks.

MIT’s Open Source ventilator design submitted for fast-track FDA approval. #COVID19

In many parts of the world the COVID-19 pandemic is causing shortages in hospital space, staff, medical supplies, and equipment. Severe cases may require breathing support, but there are only so many ventilators available. With that in mind, MIT is working on FDA approval of an emergency ventilator system (E-Vent). They have submitted the design to the FDA for fast track review. The project is open source, so once they have approval the team will release all the data needed to replicate it.

Continue reading “MIT Ventilator Designed With Common Manual Resuscitator; Submitted For FDA Testing” »

By Bill D’Zio

Soyuz creeping up in cost

NASA has been dependent on Russia for transport to and from the ISS. Over time the cost of seats on the Soyuz crew vehicle have risen.

The Roscosmos’s Soyuz vehicle has been ferrying crew to the International Space Station since November 2000. Originally Soyuz was designed to carry cosmonauts to the Moon, however was repurposed to be the main transport vehicle for Russia over the years. The Soyuz spacecraft is capable of carrying three crewmembers at a time and is certified to remain docked with the ISS for a maximum of 200 days and is launched from the Baikonur Cosmodrome launch site.

Until the NASA Commercial Crew Program (CCP) is completed, Roscosmos remains the sole option for transporting astronauts to and from the ISS. At all times, at least one of the Soyuz spacecraft is docked at the International Space Station serving as an emergency lifeboat or escape pot should evacuation be needed. Typically two Soyuz capsules are docked at the ISS which allows up to six astronauts to remain on the International Space Station. The limit of six astronauts is established by the number of seats available for evacuation.

Read the rest of the article.