Author: Robert Zimmerman

SpaceX schedules likely first static fire tests for orbital Starship and Superheavy

9:01 am

Capitalism in space: SpaceX has scheduled a weeklong series of road closures at Boca Chica, beginning next week, suggesting they are about to begin the first static fire tests for the orbital prototypes of both Starship (#20) and Superheavy (#4).

The company has been installing or replacing engines on both prototypes, with the installation apparently now complete on Starship #20.

Starship’s current design features three gimballing sea-level Raptors and three vacuum-optimized variants with much larger nozzles – all in close proximity inside a 9m-wide (30 ft) skirt. As such, the first Starship static fire with any combination of Raptor Center and Raptor Vacuum engines will be a significant milestone for SpaceX. Eventually, that will likely culminate in the first static fire(s) of a Starship (likely S20) with all six Raptors installed – a test that will effectively qualify that prototype for its first orbital launch attempt.

As for Superheavy #4, they have been replacing some of its 29 engines while it sits on the launchpad, for reasons that are not clear.

It appears the company is aiming to get all of its ground-testing completed while the FAA’s approval process for the permit for the orbital flight is ongoing. This will make it possible to launch as soon as approval is obtained.

This strategy carries some risk. As long as the testing proceeds smoothly it will provide positive coverage during the FAA’s public comment period, running until mid-October. Should a test fail dramatically, however, the explosion could generate the wrong response during that comment period. Not surprisingly, SpaceX is willing to accept that risk.

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NASA reviewing a dozen commercial proposals for future government space stations

8:45 am

Capitalism in space: Rather than replace the aging International Space Station (ISS) with an entirely government-designed-and-built new station, NASA is now reviewing about a dozen commercial proposals from private companies.

NASA earlier this year unveiled the Commercial LEO Destinations project, with plans to award up to $400 million in total contracts to as many as four companies to begin development of private space stations. In response to NASA’s request, its director of commercial spaceflight, Phil McAlister, told CNBC that the agency “received roughly about a dozen proposals” from a variety of companies for contracts under the project.

…The ISS is more than 20 years old and costs NASA about $4 billion a year to operate. The space station is approved to operate through the end of 2024, with a likely lifespan extension to the end of 2028. But, moving forward, McAlister says NASA wants “to be just one of many users instead of the primary sponsor and infrastructure supporter” for stations in low Earth orbit.

Based on these initial proposals, NASA officials estimate that the agency’s cost for running this future privately-built station will be about $1 billion per year less than the cost for operating ISS.

The agency will also only pay a part of the development cost for the new station, expecting that since the private company or companies will be making money from it also they should front a significant portion of that development cost.

Essentially NASA is following precisely the recommendations I put forth in my 2017 policy paper, Capitalism in space. And as I also predicted, the result is more achievement faster for far less cost.

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Today’s blacklisted American: Gun stores in Boston suburb banned

12:04 pm

Browning Brothers gun shop, Ogden, Utah Territory, 1882. From left to right: Thomas Samuel Browning, George Emmett Browning, John Moses Browning, Matthew Sandefur Browning, Jonathan Edmund Browning, and Frank Rushton
Gun shops banned in Brookline, Massachusetts.

They’re coming for you next: The local government in Brookline, Massachusetts, a suburban community outside of Boston, is attempting to impose new zoning regulations that would essentially ban gun stores.

Under the new zoning proposal submitted by town board members Petra Bignami, Janice Kahn, Alexandra Metral, and Sharon Schoffman, gun stores would only be allowed to operate by special permit. It also states buffer zones will be around residential properties, private and public K-12 schools, and childcare facilities, which would block firearm businesses from operating within a certain distance.

The proposal came after the City of Newton, one town over, approved new zoning rules for gun stores in June that restricted them to three locations. This action was in response to a new gun store attempting to open.

Since this very leftist community is routinely hostile to the second amendment and the right to bear arms, it would astonish me if any special permit would ever be approved. And even if one was, the buffer rules are likely so restrictive that there is probably no location in town where a gun store would be legal.

The illogic of gun control advocates always amazes me. » Read more

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Glacial falls on Mars

11:01 am

A glacial falls on Mars
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken on July 2, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It provides us just one more clear example of the many glaciers found in that 2,000-mile-long strip of chaos terrain at 30 to 47 degrees north latitude that runs between the northern lowland plains and the southern cratered highlands, a region I like to call Mars’ glacier country.

What makes this glacial feature interesting is that these ice-filled alcoves are south-facing, which in the northern hemisphere means they get the most sunlight. Yet, the ice here remains, well-protected by its layer of dust and debris. Think of the dirty ice slush that manages to survive the longest on city streets in the spring. The dirt acts as protection so that the ice takes more time to melt.

The overview map as always provides our context.
» Read more

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China launches unmanned Tianzhou freighter to its space station

9:05 am

The new colonial movement: In preparation for the arrival of its next three-person crew, China yesterday successfully used its Long March 7 rocket to launch an unmanned Tianzhou freighter to its new space station, docking there seven hours later.

The Long March 7 is a new rocket that launches from China’s Wenchang spaceport on the country’s southern coast. Thus, its expendable stages fall into the ocean, not within China. The rocket also does not use toxic hypergolic fuels, but kerosene and oxygen, so it is less environmental harmful.

The crew will launch to the station on October 13th and will likely spend six months at the station.

The leaders in the 2021 launch race:

32 China
23 SpaceX
15 Russia
4 Northrop Grumman

The U.S. still leads China 34 to 32 in the national rankings.

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SpaceX targeting 6 commercial manned flights per year

9:06 am

Capitalism in space: With the successfully completion of its first manned orbital private space, SpaceX officials announced yesterday that they are expecting to fly about six such commercial manned flights per year.

Benji Reed, SpaceX’s senior director for its human spaceflight program projected as many as a half a dozen flights a year. “There’s nothing really that limits our capability to launch,” he said. “It’s about having rockets and Dragons ready to go and having everything in the manifest align with our other launches.”

…“The reality is the Dragon manifest is getting busier by the moment,” Reed said, noting the planned flight in early 2022 of four passengers for customer Axiom Space that will actually fly to and stay on the ISS for a few days. “It just goes on from there. We have a number of NASA missions that we’ll do, and we also have a growing backlog of commercial astronaut missions that we’re looking forward to perform.” [emphasis mine]

The highlighted words are most intriguing, suggesting that SpaceX might have an already signed line-up of customers ready to pay the ticket price to fly on a Dragon capsule.

Meanwhile, Elon Musk announced late yesterday that he has decided to donate $50 million of his own money to St. Jude Children’s Research Hospital, in celebration of the completion of the Inspiration4 flight.

“This brings tears to my eyes,” wrote Inspiration4 medical officer Hayley Arceneaux, a St. Jude physicians assistant and survivor of childhood bone cancer, of Musk’s donation. “Thank you Elon Musk for this generous donation toward our $200 million dollar fundraising goal for St. Jude!!!”

Isaacman also thanked Musk and reminded the public that the fundraiser is still underway. Isaacman donated $100 million of his own money to the fundraising goal, then donated the three other seats on Inspiration4 to raise awareness for St. Jude. Arceneaux was selected by St. Jude to fill the “Hope” seat on the crew.

If you wish to make your own donation to St. Jude, you can do so here. You can donate cash directly, or you can bid to win one or more of a variety of items that were carried on the flight.

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Inspiration4 passengers scheduled for return to Earth tonight

9:01 am

The first entirely private manned orbital mission to space is now scheduled to return to Earth tonight, with splashdown set for 7:06 pm (eastern).

The SpaceX live stream of the landing will begin approximately 4:30 pm (eastern).

Yesterday the passengers released some videos, including a conversation with children who are cancer patients at St. Jude Children’s Research Hospital. They also provided a video update to the general public.

As I noted yesterday, the primary goal of this flight is to raise money for St. Jude. If you wish to send a donation to St. Jude as part of the Inspiration4 spaceflight, you can do so here. You can donate cash directly, or you can bid to win one or more of a variety of items that are on the flight now.

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Ben Folds – A Song for Orchestra In Only 10 Minutes

6:01 pm

An evening pause: This is quite wonderful. I am certain Folds did some preliminary planning in advance, but it is clear the orchestra did not have this info and he needed to bring them up to speed fast. Their musical skill, combined with the composer’s own musical knowledge and Folds’ clear musical instructions, makes this come together.

Hat tip Mike Nelson.

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Badlands on the floor of a Martian crater

1:27 pm

Badlands on the floor of a Martian crater
Click for full image.

Cool image time! The photo to the right, rotated, cropped, and reduced to post here, shows one small section of a 30-mile-wide unnamed crater in the cratered equatorial regions of Mars northeast of Hellas Basin. Taken on July 21, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), the science team labeled merely as “Rocky crater fill.”

Being at 17 degrees south latitude, there shouldn’t be any ice features in this crater, and the high resolution image to the right seems to confirm this. All we see is an endless plain made up of innumerable small sharp rock ridges interspersed with small low areas filled with sand dunes. This is bed rock, and if its strange stucco-like appearance was caused by a past glacial era, that era is long gone.

Below is a mosaic showing the entire crater, created from two MRO context camera images.
» Read more

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