Author: Robert Zimmerman

Elon Musk gives another tour of Starbase

9:59 am

Tim Dodd of Everyday Astronaut has posted another 44 minute long interview with Elon Musk that took place as Musk gave him a recent tour at Boca Chica, walking around the base of the Starship and Superheavy boosters being prepared for that first orbital launch.

I have embedded the interview below. It has the following interesting take-aways:

  • In describing their decision to eliminate completely a separate attitude thrust system for Starship and instead use the fuels in the main tanks using controllable vents, Musk once again demonstrated his engineering philosophy that “the best part is no part.”
  • The company is definitely planning to test the deployment of some Starlink satellites on that first orbital test flight.
  • Musk once again emphasized that there is a high expectation that this first orbital flight will fail, but they are unbothered by this because this first ship is considered a prototype anyway that must be redesigned. Whether it completes its flight or not, the flight will tell them what needs to be done for future iterations.
  • They are aiming with Starship to reduce to cost to bring a ton to the surface of Mars from $1 billion to $100K. Musk called this improvement “insane” but entirely possible.
  • Musk also noted how the design of Starship is not like a plane, which wants to develop lift. Starship instead is designed to fall, but do so as “draggy” as possible. The goal is to shed as much velocity as possible, as soon as possible.

Dodd also notes this video is the first of a new series.
» Read more

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Study: Russian astronauts on ISS have better techniques for protecting the brain

9:12 am

According to a study comparing the changes in the brain experienced during long term missions on ISS, it appears that the Russians have developed better protocols for preparing themselves for return to Earth that prevents the enlargement in one part of the brain seen in American astronauts.

From the link:

The study focused on 24 Americans, 13 Russians, and a small, unspecified number of astronauts from the ESA. The researchers collected MRI scans of the astronauts’ brains before and after they spent six months on the ISS (only 256 individuals have visited the space station).

After being in space, all the space travelers exhibited similar brain changes: cerebrospinal fluid buildup and reduced space between the brain and the surrounding membrane at the top of the head. The Americans, however, also had more enlargement in the regions of the brain that serve as a cleaning system during sleep, e.g. the perivascular space (PVS).

…The Russian astronauts did not exhibit enlarged PVS, suggesting there might be differences in protocol that are neuro-protective.

From the paper itself:

[Russian C]osmonauts undergo six lower body negative pressure (LBNP) sessions starting two weeks prior to landing, while NASA and ESA astronauts do not typically do it. LBNP induces caudal displacement of fluids from the upper body by placing the legs and pelvis in a semiairtight chamber with negative pressure.

An advanced resistive exercise device (ARED) is regularly used by space flyers to perform free weight exercises on the ISS, but the load and frequency of use are lower for [Russian] cosmonauts compared with NASA and ESA astronauts. Lifting heavy loads during resistive exercise is often accompanied by a brief Valsalva maneuver, inducing increased ICP and decreased cerebral blood flow and cerebrovascular transmural pressure, which can result in PVS fluid accumulation. Although the effects of LBNP and ARED on the brain during spaceflight are unknown, they could partly explain the different WM-PVS changes detected in astronauts and cosmonauts. We cannot exclude that other factors (e.g., diet) might play a role in this difference. Further studies are required to confirm these hypotheses.

Apparently two protocols are different that seem to help the Russians. First, the LBNP, developed by the Russians on their earlier space stations, is essentially a pair of pants that sucks fluids down to the legs, simulating the situation normally found on Earth, and thus reduces the fluids in the upper body sooner than landing. Second, doing exercises simulating lower weight loads apparently helps the Russians as well.

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ISRO successfully tests human-rated solid rocket booster

8:52 am

India’s space agency ISRO announced on May 13, 2022 that it had successfully tested the man-rated version of the solid rocket strap-on booster used on its GSLV Mark 3 rocket that will launch its first manned mission into space.

The 20 m long and 3.2 m diameter booster is the world’s second-largest operational booster with solid propellant. During this test, about 700 parameters were monitored and the performance of all the systems was normal.

Launch of the Gaganyaan manned mission is now targeting ’23.

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FAA approves Huntsville airport as landing site for Dream Chaser

9:24 am

Capitalism in space: The FAA announced on May 13, 2022 that it has approved use of Huntsville International airport for landing Sierra Space’s reusable Dream Chaser cargo mini-shuttle, once it begins flying.

The approval covers “up to eight reentry operations at the airport from 2023 to 2027.” Though Sierra Space will still need to get its launch license from the FAA before those flights can happen, it looks like the company is finally getting close to the first flight of Tenacity, its first Dream Chaser ship.

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SpaceX launches 53 Starlink satellites on a new Falcon 9 rocket

3:18 pm

Capitalism in space: SpaceX today successfully launched another 53 Starlink satellites, the company’s second launch in less than 24 hours.

The most newsworthy component of this launch is that for first time since February 2, 2022, and only the fourth time since the beginning of 2020, the Falcon 9 rocket used a new first stage, which successfully landed on its drone ship in the Atlantic. It appears that SpaceX is adding about two new boosters per year to its first stage fleet, based on the evidence from these launches.

The leaders in the 2022 launch race:

20 SpaceX
15 China
6 Russia
3 Rocket Lab
2 ULA

The U.S. now leads China 28 to 15 in the national rankings, and the entire world combined 28 to 24.

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SpaceX successfully launches another 53 Starlink satellites

3:22 pm

Capitalism in space: SpaceX today successfully launched another 53 Starlink satellites, using a Falcon 9 first stage for the fifth time.

The first stage landed successfully on a drone ship.

The leaders in the 2022 launch race:

19 SpaceX
15 China
6 Russia
3 Rocket Lab
2 ULA

The U.S. now leads China 27 to 15 in the national rankings, as well as the entire world combined 27 to 24, leads that should widen in the next week with two more SpaceX launches as well as Boeing’s Starliner unmanned demo mission launch on ULA’s Atlas-5.

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Today’s blacklisted American: Professor’s suspension for having an opinion now more than 100 days long, with no end in sight

12:46 pm

Georgetown University: No free speech allowed

They’re coming for you next: The suspension by Georgetown University of Ilya Shapiro from his position as executive director for the Georgetown Center for the Constitution because he posted a tweet critical of Biden’s most recent Supreme Court nomination is now more than 100 days long, with no clear end date.

Shapiro’s tweet, now deleted, had noted the Biden administration’s decision to make race and gender more important than a judge’s legal qualifications in picking Ketanji Brown Jackson for the Supreme Court was a bad mistake. For that crime, Georgetown University put him on administrative leave while it conducted “an investigation.”

It is now more than three months later, and the university not only has not completed this faux investigation, which really has nothing to investigate as all the facts are plainly visible for all to see, it apparently has no intention of telling anyone when the investigation will end:
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Are the COVID vaccines killing people over time? The data suggests yes.

11:39 am

Excess mortality by age

While overall the risk of getting the COVID shots is quite small, the data is increasingly suggesting that these shots might have some very serious long term consequences. The graph to the right, taken from a January 2022 report [pdf] of the Society of Actuaries Research Institute and first spotted by Dr. Aaron Kheriaty, indicates a shocking and inexplicable increase in mortality among the nation’s young. As noted by Thomas Lifson at American Thinker:

Something is killing off large numbers of 25- to 54-year-olds in the United States, and the powers that be in government and the media are pretending it is not happening. There is no visible effort to study the alarming statistics gathered by actuaries for the life insurance industry, which keeps track of deaths because they directly impact their bottom line through claims from the insured. [emphasis in original]

These deaths are not Wuhan flu deaths. However, the sudden rise of mortality from many other causes among the young in the third quarter of 2021, only a short time after the majority of the population had been given the COVID shots, is significant and strongly suggests the shots have something to do with this.

That supposition is further strengthened by another story today:

AIDS-related Diseases & Cancers reported to VAERS increased between 1,145% and 33,715% in 2021

For clarity, these AIDS-related deaths are not related to the HIV virus. Acquired immunodeficiency (AIDS) can occur for many reasons, and when it does the victim then can die from many other diseases or cancers, because his or her body can no longer fight them off.

Below is the most pertinent graph from that story, created by The Exposé directly from publicly available CDC data.
» Read more

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NASA corrupt safety panel once again blathers on

9:41 am

The corrupt safety panel at NASA that spent years slowing down SpaceX’s manned Dragon capsule development with sometimes absurd demands, including delays caused simply because of paperwork, is now demanding that NASA should slow its approval of Boeing’s Starliner capsule, even if its unmanned demo mission next week succeeds completely.

This quote from the article best illustrates this safety panel’s do-nothing bureaucratic view of the world:

A further concern is that Starliner uses the United Launch Alliance (ULA) Atlas V rocket to get to orbit, but Atlas Vs are being phased out. ULA is building a new rocket, Vulcan, that could see its first launch late this year, but must go through a “human-rating” certification process that [panel member David] West said “could take years” for Starliner. [emphasis mine]

Every demand of this panel for years has demanded years of delays, with many having nothing to do with technical safety — the panel’s original purpose — but with management questions and the panel’s own overblown opinion of itself. Worse, some of its demands never made sense, such as its objection to SpaceX’s launch procedures where it fueled the rocket after the astronauts got on board. This quote from an earlier post about the panel’s recent inappropriate attempt to insert itself into NASA’s policy decisions sums things up well, and provides links to previous failures of the panel:

This panel continues to demonstrate its corrupt and power-hungry attitude about how the U.S. should explore space. For years it did whatever it could to stymie NASA’s efforts to transfer ownership to the private sector, putting up false barriers to the launch of SpaceX’s manned Dragon capsule that made no sense and were really designed to keep all control within the government bureaucracy.

It is now targeting Boeing, though amazingly it is only doing it after many of Starliner’s technical problems have been uncovered. The safety panel was a complete failure in spotting the company’s problems early on, several years ago, when it might have saved everyone a lot of time and money. Instead, it now acts like an annoying back seat driver, only kibitzing about things that went wrong long after everyone else has done the work.

I have been saying for years that it is time to shut this panel down. It is now long past time to do so. The time and money saved might actually improve safety far more than the panel ever has.

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