January 3, 2023 Zimmerman/Space Show podcast
You can now listen to the podcast of my appearance last night, January 2, 2023, on the Space Show at this link.
It was fun show, especially because we had some good callers.
Year: 2023
George Winston – Thanksgiving
An evening pause: For a winter’s evening.
Hat tip Alton Blevins.
January 3, 2023 Quick space links
Courtesy of BtB’s stringer, who trolls the web to make sure I don’t miss any important stories.
- Astronaut Walt Cunningham has passed away
Cunningham only flew in space once, on Apollo 7, the first shakedown flight of the Apollo capsule in October 1968. The flight lasted ten days, had no technical problems at all, though all three astronauts caught colds. Its success paved the way for the Apollo 8 mission around the Moon two months later.
- LeoLabs files petition with FCC requesting it rethink the limitations it placed on SpaceX’s Starlink constellation [pdf]
It appears the FCC took an arbitrary number LeoLabs had used in a presentation merely for “ease of exposition and calculation in describing the methodology” and made it the basis for limiting the number of satellites SpaceX could launch. LeoLabs wants the FCC to fix this.
- The trailer for the Russian sci-fi movie, The Challenge, that was partly filmed on ISS last year, has now been released
It is very clear that they got a lot of good footage when they were on ISS. It is a shame however that this trailer doesn’t have English subtitles, because I think it probably could make some money from American filmgoers.
Pushback: Court denies school principal immunity from lawsuit for squelching free speech
Former school principal Caroline Garrett
Pushback: A federal appeals court last week ruled that Caroline Garrett, the former principal of Wy’east Middle School in Portland, Oregon, does not have immunity from a lawsuit by a teacher, Eric Dodge, whom she threatened to punish for bringing a MAGA hat to several training sessions.
At the first training session with 60 participants, “fewer than five people complained, including the first presenter who was not a District employee,” and all trainings were completed without incident, according to the court records. “Clinton, Reagan, and Trump appointees coming together to affirm the First Amendment,” lawyer Gregory Conley tweeted in response to the ruling, referring to the panel of judges.
According to the court’s official ruling [pdf], Garrett threatened to punish Dodge if he brought the hat into school again:
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China releases first update on status of Yutu-2 since September
Click for full image. The red flag marks the landing site.
China today released its first update since September on the status of its Yutu-2 rover on the far side of the Moon. The map on the right shows the rover’s travels through December 2022.
As of today the rover has traveled 4,774 feet total, and about 450 feet since September. The goal, as stated in April 2021, was to “move northwest toward the basalt distribution area located about 1.2 km away.” At the time the rover was only averaging about 100 feet travel per lunar day. According to these numbers, it picked up the pace in the past year, though it is unclear whether it has reached that goal.
The soft icy Martian northern lowland plains
Click for full image.
In a cool image post last week, I noted that the near surface “ice sheets in the northern lowland plains are never … smooth, even if well protected.” The picture to the right, cropped, reduced, and sharpened to post here, provides an excellent example. It was taken on November 2, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).
It is winter, and the sunlight is coming from the southwest, only 27 degrees above the horizon. The mound on the left is soft, while the depression on the upper right appears to have sand dune ripples sitting on top of a flat glacial mound. This depression may be an eroded crater (no upraised rim) or it could be a sink caused by the sublimation of the near surface ice.
Everywhere else the flat plains are stippled with small knobs.
The overview map below provides more context.
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Largest volcanic eruption in years detected on Io
Using instruments on a ground-based telescope, one scientist based at the Planetary Science Institute (PSI) in Arizona has detected the largest volcanic eruption in years on the Jupiter moon Io.
PSI Senior Scientist [Jeff] Morgenthaler has been using IoIO, located near Benson, Arizona to monitor volcanic activity on Io, since 2017. The observations show some sort of outburst nearly every year, but the largest yet was seen in the fall of 2022. Io is the innermost of Jupiter’s four large moons and is the most volcanic body in the Solar System thanks to the tidal stresses it feels from Jupiter and two of its other large satellites, Europa and Ganymede.
IoIO uses a coronagraphic technique which dims the light coming from Jupiter to enable imaging of faint gases near the very bright planet. A brightening of two of these gases, sodium and ionized sulfur, began between July and September 2022 and lasted until December 2022. The ionized sulfur, which forms a donut-like structure that encircles Jupiter and is called the Io plasma torus, was curiously not nearly as bright in this outburst as previously seen. “This could be telling us something about the composition of the volcanic activity that produced the outburst or it could be telling us that the torus is more efficient at ridding itself of material when more material is thrown into it,” Morgenthaler said.
The material released by this eruption could impact Juno during future close approaches of Jupiter.
SpaceX raises another $750 million in private investment capital
SpaceX has just completed another round of fund-raising, gaining another $750 million in private investment capital.
This additional money now means that SpaceX has raised about $10 billion in private money, most of which is being used for the development of Starship and Superheavy. When we add the $4 billion SpaceX will get from NASA for Starship, the company now has $14 billion to build this new rocket.
SpaceX starts 2023 with first launch of year
SpaceX today opened the 2023 launch race with first launch of year, using its Falcon 9 rocket to place 114 satellites into orbit, most of which are smallsats.
The first stage completed its 15th flight, landing safely at Cape Canaveral. As of this writing deployment of the many smallsats is ongoing.
John Williams – The Cowboys Overture
An evening pause: It is more than a decade since I last posted this magnificent piece of music from the 1972 John Wayne film, The Cowboys. Time to post it again, because I think it makes a great start to a new year. Rather than John Williams conducting, this time we have a 2018 performance by the Stanisław Moniuszko School of Music Orchestra in Bielsko Biała, Poland, Andrzej Kucybała, conductor.
On the radio plus under the weather
Two things:
1. I will be on the Space Show with David Livingston tomorrow night for about two hours, beginning at 7 pm (Pacific). You can listen to it here. Please consider calling in. Conversations and questions are always fun.
2. I am a bit under the weather today, so it is likely I will not have the energy to do a blacklist column today or a cool image. This could change, as I get restless if not active. Regardless, I want to take some pressure off by making it voluntary, not a requirement for the day.
Rocketry went BOOM! in 2022, but in a good way
In my 2021 annual report on the global launch industry, I noted that while 2021 was a banner year for the global launch industry:
Not all is sweetness and light of course. Competition and freedom always includes risk. Some of these new companies will certainly fail. The demand for launch services might not be enough to sustain them all. And factors outside the control of anyone, such as war and further panics like the Wuhan panic, could shut them all down.
In 2022 the launch industry not only topped 2021, setting a new record for successful launches in a single year, the industry was reshaped and changed by the very factors I warned about one year ago. The Russian invasion of the Ukraine resulted in Russia losing its one remaining satellite customer from the west, OneWeb, while the challenges of rocketry caused one already successful launch company, Astra, to suspend its launch services in order to develop a more competitive rocket.
Nonetheless, 2022 remained the most successful year ever in rocketry, smashing the record for successful launches in a single year, set the previous year, by more than 33%. The graph below illustrates well the unprecedented success of 2022.
» Read more