On the radio
This is a late addition. Coast to Coast with George Noory suddenly called me today and asked me to do the first two hours tonight. We are about to begin.
Category: Behind The Black
Korman & Conway – Undercover cops
An evening pause: From the Carol Burnett Show.
Hat tip Phill Oltmann.
Two wedding cakes on Mars
Click for full image.
It it time for two cool Martian images from the high resolution camera on Mars Reconnaissance Orbiter (MRO). Though both show features that are similar and likely had some comparable geological origins, they are located in two very different places on Mars and thus also had very different histories.
What makes them fun is how much both resemble classic tall wedding cakes, though the second has unfortunately fallen down and is no longer eatable.
The first, cropped on the right to post here, was taken on May 18, 2020, and is described by the science team as a “Tall Layered Mesa in Crater in Deuteronilus Mensae.” Deuteronilus Mensae is in the transition zone between the northern lowland plains and the southern cratered highlands, and being in the high mid-latitudes (42 degrees north) shows a lot of evidence of buried and eroded glaciers. Many of these glaciers are found inside craters.
What caused this layered mesa however to form is beyond me. It is taller than the crater in which it sits, as well as the surrounding terrain. A glacier would settle into the lowest regions, and would not last if exposed above the rim like this is. Its height suggests that the surrounding terrain was once much higher, and has been eroded away. Yet if so, why does this mesa also sit inside a depression?
The second “wedding cake” is even more intriguing, though less baffling.
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Visa blacklists business for having incorrect opinions
Capitalism in space: It appears that Visa is blacklisting Gab because it encourages free speech rather than toe the new corporate line that censors any speech the left does not like.
It also appears that Visa is also blacklisting the owner personally, as well as his family. We can’t have wrong thought in this new American nation of rules, regulations, and controlled and policed speech. Remember, persecution is now cool!
Firefly honors the man who saved it from bankruptcy
Capitalism in space: Firefly Aerospace yesterday found a very unusual and entertaining way to celebrate the 43rth birthday of Max Polykov, the investor who purchased the company during bankruptcy proceedings and then rehired everyone so that the company could come back from the dead.
They decided to use one of their rocket engines to light the candles on his birthday cake. I have embedded the video of this effort below the fold. It is very clear that everyone at Firefly is immensely and sincerely grateful to Polykov for saving their company, which right now is among the leaders in the race to be one of the new rocket companies to meet the needs of the burgeoning new satellite industry.
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Boeing’s Starliner aces parachute test
Capitalism in space: Boeing last week successfully completed a Starliner parachute test designed to simulate the return of a capsule after a launch abort.
This is good news for the capsule and Boeing, but I am a bit puzzled why this test, to be followed by a second similar test, was done. These parachutes were supposedly tested thoroughly already, proven, and ready for use for manned missions. Part of that proof was an earlier launch abort test as well as Boeing’s unmanned orbital demo flight that failed to dock with ISS. Both returned to Earth safely using these parachutes. I wonder if during those latter flights they found issues with the parachutes that needed smoothing out by even more tests.
Either way, this success improves the chances that Starliner will finally fly manned early next year, giving the U.S. two different operational manned capsules for getting humans into space.
SpaceX’s reusable first stages and their dramatic impact on the bottom line
This article by Eric Berger at Ars Technica outlining the status of SpaceX’s fleet of reusable first stages contained this incredible fact:
On May 11, 2018, the company launched the first of its new “Block 5” version of its Falcon 9 rocket. This new version of the first stage incorporated all of the company’s previous performance upgrades to the Falcon 9 rocket while also maximizing its reuse. It worked—SpaceX has now flown two different Falcon 9 cores five times, and it may fly a first stage for the sixth time later this summer.
The success of the Block 5 rocket means that SpaceX has had to devote less time and resources to building Falcon 9 first stages. Since May 2018, it has launched 31 times on a Block 5 version of the Falcon 9 rocket—while using just 10 cores. Put another way, reuse has saved SpaceX the cost of 189 Merlin rocket engines, dozens of fuel tanks, and many complex avionics systems. [emphasis mine]
That is a lot of cost savings, which the company is not only using to cut its prices but also to reduce the cost of its Starlink launches. It appears SpaceX wants those launches, as much as possible, to use reused boosters in order to lower the overall cost of getting that internet constellation into orbit. This in turn will make it possible for them to charge less for the service, once they begin offering it.
Space Force restructures/reduces former Air Force command structure
The new Space Force has restructured and reduced the former Air Force command structure as it begins to take over military space operations from the latter agency.
The USSF field organization will consist of three echelons of command, where the Air Force currently is organized into five echelons. USSF’s organizational structure will initially consolidate and align all organize, train and equip mission execution from former Air Force space-related units.
…In order of hierarchy, the USSF field echelons are named field commands, deltas and squadrons. There will be three field commands aligned with specific mission focuses: Space Operations Command, Space Systems Command, and Space Training and Readiness Command. SpOC and SSC will be led by three-star general officers, and STARCOM will be led by a two-star general.
Deltas will be O-6 led and will be organized around a specific function – operations, installation support, training, etc. Within the deltas will be squadrons focused on specific tactics. When the field command structure is fully implemented, it will eliminate one general officer echelon and one O-6 echelon of command. Functions formerly performed at the eliminated echelons will be realigned where appropriate within the USSF.
This sounds good, but we shall see. New government agencies proposed by our federal government to streamline bureaucracies somehow always end up bloating those bureaucracies instead. The Space Force was created with this laudable goal. This press release at least suggests they are trying to achieve it.
Russia to consider building reusable stages for Angara
Roscosmos, Russia’s space agency that controls that nation’s entire aerospace industry, is “considering” the idea of developing reusable rocket stages for future iterations of its new Angara rocket.
“On June 30, changes were made to the state contract on the ‘Amur’ experimental design work that envisaged upgrading and further developing this series,” the statement says. In particular, the changes envisage developing the Angara-A5M as the upgraded version of the Angara-A5 rocket and the conceptual design of the Angara-A5V increased lifting capacity vehicle (with the oxygen-hydrogen third stage).
“Also, an option will be considered to develop the Angara-A5VM carrier rocket with reusable stages,” Roscosmos specified.
I’ll believe it when I see it. For now almost twenty years the Russians have been very good at issuing bold press releases promising wonderful new rockets, spaceships, and projects, only to have none of these rockets, spaceships, or projects ever actually happen.
That they are even considering reusable first stages however does show the power of competition and freedom. They never would have if SpaceX hadn’t come along and cut costs with this idea and thus take their entire market share from them. Now they have to find a way to compete in order to get some of that business back..
Starship prototype #5 passes cryogenic test
Capitalism in space: SpaceX’s fifth Starship prototype #5 last night successfully completed a cryogenic test of its tanks, setting the stage for its first vertical test flight.
SpaceX’s Starship SN5 prototype performed a cryogenic proof test at the launch provider’s Boca Chica, Texas facility on Tuesday evening. The test marked a rapid recovery for SpaceX – managing to return to testing a month after the previous vehicle exploded on the pad.
The cryogenic proof is when the vehicle’s propellant tanks are filled with liquid nitrogen and pressurized to flight pressures. Then, hydraulic pistons (otherwise known as a thrust simulator) press against the base of the vehicle to mimic the force of a Raptor engine. The proof test will ensure that Starship SN5 is structurally sound ahead of testing with liquid oxygen and methane. Unlike oxygen and methane, nitrogen is inert and will not combust if something were to go wrong.
The article at the link gives a nice overview of the test program, and what is to come next.
Perseverance launch delayed to July 30, 2020
Not good: Because of an issue with the Atlas 5 rocket, NASA and ULA have decided to delay again the launch of the next Mars rover Perseverance from July 22nd to July 30th.
“Due to launch vehicle processing delays in preparation for spacecraft mate operations, NASA and United Launch Alliance have moved the first launch attempt of the Mars 2020 mission to no earlier than July 30,” NASA said. “A liquid oxygen sensor line presented off-nominal data during the Wet Dress Rehearsal, and additional time is needed for the team to inspect and evaluate.”
ULA performed the Wet Dress Rehearsal on June 22. The exercise involved rolling the Perseverance rover’s Atlas 5 launcher out of its vertical integration hangar to Cape Canaveral’s Complex 41 launch pad, then loading the rocket with kerosene, liquid hydrogen, and liquid oxygen propellants. The launch team practiced countdown procedures, testing the Atlas 5’s systems before halting the pre-launch sequence seconds before ignition of the rocket’s RD-180 main engine.
Their official launch window extends to August 11th, though they could still launch as late as August 15th and get to their landing site in Jezero Crater on Mars.
This is the third delay. The first involved a faulty crane and the second contamination issues in the rover’s clean room. Now an issue with an oxygen sensor. Let us hope their are no more, and that the weather then cooperates. It they don’t launch by August 15th the launch will then be postponed for two whole years.
Paul Revere and the Raiders – Kicks
An evening pause: Performed live in 2011.
Hat tip Diane Zimmerman.