Video of Iranian launch today

9:22 pm

The Iranians have released video of today’s rocket launch.

I’d love a translation of what the crowd is chanting. I would also encourage the engineers in my readership to look at this and tell me if the launch looks right, and if there is any way to judge whether it is an rocket for orbital satellites or a missile. We still have no evidence the rocket successfully put anything in orbit.

Meanwhile, the Trump administration has called this launch a breach of a UN resolution forbidding Iran from developing ballistic missiles.

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Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

 

The print edition can be purchased at Amazon or any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.


The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News

Iran launches satellite

10:15 am

According to its state news services, Iran today successfully launched a satellite into orbit.

Iranian state television described the launch as involving a “Simorgh” rocket that is capable of carrying a satellite weighing 550 pounds. The state media report did not elaborate on the rocket’s payload. “Simorgh” means “phoenix” in Farsi.

The website YJC.ir, which is affiliated with Iranian state television, as well as the semi-official Fars news agency, also reported the launch on Thursday, saying it was successful.

No information as yet on the payload. That the launch itself has not yet been recognized by websites that track these things, it is possible the launch was not successful, but they do not want to admit it.

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Conscious Choice cover

Now available in hardback and paperback as well as ebook!

 

From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.

 
Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.  
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.

 

“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of the Mars Society.

 

All editions are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. All editions can also be purchased direct from the ebook publisher, ebookit, in which case you don't support the big tech companies and the author gets a bigger cut much sooner.

 

Autographed printed copies are also available at discount directly from the author (hardback $29.95; paperback $14.95; Shipping cost for either: $6.00). Just send an email to zimmerman @ nasw dot org.

FBI arrest former IT staffer for many Democrats in Congress

10:05 am

A real Washington scandal: The FBI on Tuesday arrested a former Congressional IT staffer as he was trying to flee the country.

The man, Imran Aran, had run the computer systems for many Democrats in Congress, including former DNC head Debbie Wasserman Schultz. And while most Democrats fired Aran when he came under investigation months ago, Wasserman Schultz had kept in on her payroll until his arrest this week.

Several details that give some important political context to this story, and are not mentioned in the CNN article above:

The last story above includes other details about how Aran also threatened the renter of his home for cooperating with police. As the renter (a Marine and apparently a Democrat) noted, “He’s dangerous. This is a crime syndicate that has successfully infiltrated Congress,” he said. “If Donald Trump and the Republicans had hired foreign nationals to be their top IT guys and somehow their congressional files had been compromised, this would have been all over the news.”

Update: The correction above is because the news article linked to had mistakenly said that the hard drives were taken from Wasserman Schultz’s home. There were instead recovered from the Marine above when he found them in Aran’s former home, which he was now renting.

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Cameras on next Kepler-like exoplanet space telescope out of focus

9:34 am

NASA has revealed that the cameras on the Transiting Exoplanet Survey Satellite (TESS) become slightly out of focus when they are cooled to -75 Celsius, the temperature they will experience in space.

NASA has also decided that the fuzziness is not enough to require a fix, and is proceeding with the mission as is, despite concerns expressed by scientists.

Alan Boss, an astronomer with the Carnegie Institution, brought up the issue in a summary of a meeting last week of the Astrophysics Advisory Committee, of which he is a member. “That could have some big effects on the photometry,” he said of the focus problem. “This is certainly a concern for the folks who know a lot about photometry.”

TESS will use those cameras to monitor the brightness of the nearest and brightest stars in the sky, an approach similar to that used by Kepler, a spacecraft developed originally to monitor one specific region of the sky. Both spacecraft are designed to look for minute, periodic dips in brightness of those stars as planets pass in front of, or transit, them. Chou said that since TESS is designed to conduct photometry, measuring the brightness of the stars in its field of view, “resolution is less important compared to imaging missions like Hubble.” However, astronomers are concerned that there will be some loss of sensitivity because light from the stars will be spread out onto a slightly larger area of the detector.

“The question is how much science degradation will there be in the results,” Boss said. “The TESS team thinks there will be a 10 percent cut in terms of the number of planets that they expect to be able to detect.”

It could be that NASA has decided that the cost and delay required to fix this is not worth that 10% loss of data.

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Leaving Earth cover

Leaving Earth: Space Stations, Rival Superpowers, and the Quest for Interplanetary Travel, can be purchased as an ebook everywhere for only $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from my ebook publisher, ebookit.

 

If you buy it from ebookit you don't support the big oppressive tech companies and I get a bigger cut much sooner.

 

Winner of the 2003 Eugene M. Emme Award of the American Astronautical Society.

 
"Leaving Earth is one of the best and certainly the most comprehensive summary of our drive into space that I have ever read. It will be invaluable to future scholars because it will tell them how the next chapter of human history opened." -- Arthur C. Clarke

Time/PBS video documentary nominated for Emmy despite factual error in title

9:25 am

Fake news: The Time/PBS video documentary A Year in Space has been nominated for an Emmy award, despite a blatant factual error in the show’s title.

I haven’t seen the documentary, and so it might a great achievement. Nonetheless, this mission only lasted 340 days, not a year, and to call it “a year in space” is not only false, but an outright lie. For a news organization to start out this wrong, in the title, and then for it to get an Emmy nomination, tells us a great deal about the standards of accuracy in television news.

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Breakthrough Starshot puts smallest satellites ever into orbit

9:18 am

Breakthrough Starshot, the privately funded $100 million effort to launch a probe to the nearest star, has put into orbit the world’s smallest satellites ever.

The six prototypes, dubbed Sprites, weigh only 4 grams and contain solar panels, computers, sensors, and radios on a surface equal to that of a U.S. postage stamp. Developed by researchers at Cornell University and transported into space as secondary payloads on a rocket built by the Europe-based company OHB System AG, the nanosatellites are being tested for electronics and communication performance in orbit.

The significance here is not so much that this advances the project’s interstellar mission, but that this technology is becoming more likely for use on both commercial and planetary spacecraft.

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Judge okays TMT permit

9:14 am

In a 305-page decision, an Hawaiian judge has approved a new construction permit for the Thirty Meter Telescope (TMT) on Mauna Kea.

This does not mean that the project now proceeds.

This isn’t the final say on whether the embattled project will proceed.

Now that Amano has issued her 305-page proposed decision and order, the state land board will set a deadline for telescope opponents and permit applicants to file arguments against her recommendations. The board will later hold a hearing and then make the final decision on the project’s conservation district use permit.

Not surprisingly, the Democratic governor of Hawaii issued a short, non-committal statement, stating that he supports “the co-existence of astronomy and culture on Mauna Kea,” whatever that means.

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Denmark facing the first “summerless” July in four decades

10:14 pm

Does this mean anything? Denmark is facing the first July in four decades with no days warmer than 77 degrees Fahrenheit, the temperature the weather bureau there defines as a summer day.

According to the Danish Meteorology Institute (DMI), July is likely to end without a single ‘summer day’, which is defined as any day in which temperatures top 25C (77F) at least somewhere in Denmark. If the next five days come and go without hitting 25C as predicted, it will mark the first time that Danes will have suffered through a summer-less July in nearly four decades.

“There are only three years in our records in which July contains a big fat zero when it comes to summer days and temps above 25C. That’s 1962, 1974 and 1979,” climatologist John Cappelen said on the DMI website. DMI’s database goes back to 1874.

Actually, this doesn’t mean a lot. It is however an interesting factoid that once again raises questions about the NASA and NOAA claims that this year (along with the past few years) were the hottest on record.

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Anti-vaccine campaigns are threatening the return of measles

8:09 pm

The coming dark age: The ignorant and mindless campaigns against vaccination is making it more likely that the U.S. will see a return of major measles epidemics.

Researchers Nathan Lo and Dr. Peter Hotez were motivated to conduct the study after seeing data showing growing vaccine hesitancy and use of non-medical exemptions—largely due to lies and misinformation about the safety of vaccines and the threat of devastating diseases, such as measles. Currently, about two percent of kids aged two to 11 have a non-medical vaccine exemption.

Measles, in particular, requires vigilant vaccination. The highly infectious virus can linger in the air for hours after a cough or sneeze. Those sickened develop high fevers, rashes, inflamed eyes, and cold-like stuffy nose and cough. But people can spread the infection days before those symptoms appear. About 30 percent develop complications, such as pneumonia, brain swelling, and blindness.

To thwart infections, a population must have between 90- and 95-percent vaccine coverage to maintain herd immunity. Many communities and counties in the US are already on the brink of dipping below that range and thereby losing their protection from a case of measles going, well, viral. And there’s room for those vaccination rates to continue to slip. Presently, 18 states allow for personal belief exemptions, and all but two states allow for religious or philosophical exemptions.

They of course propose forcing people to get their kids vaccinated. I say, if you have kids, you have the responsibility to get informed and get them vaccinated, instead of taking advice from uneducated television stars who know nothing about science and doctors who have had their licenses revoked.

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Commercial lunar mission gives launch contract to ULA

5:56 pm

Capitalism in space: Astrobotic, a private company planning to put a lander on the Moon by 2019, has awarded its launch contract to ULA.

This initial Peregrine lunar lander will fly 77 pounds (35 kilograms) of customer payloads from six nations either above or below the spacecraft’s deck, depending on specific needs. The autonomous landing will use cameras, guidance computing and five Aerojet Rocketdyne-made hypergolic engines to set the lander down on four shock-absorbing legs.

It will stand 6 feet tall (1.8 meters) and have a diameter of 8 feet (2.5 meters).Subsequent missions envision scaling up to payload masses of 585 pounds (265 kilograms). Markets range from scientific instruments to placing mementos on the Moon.

This company had been competing for the Google Lunar X-Prize, but pulled out of the competition when it realized it couldn’t launch by the end of 2018. It continued development, however, and apparently has gathered enough customers to pay for its launch in 2019.

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TDRS-M launch moved to August 20

5:47 pm

NASA has decided to delay the launch of its TDRS-M satellite until August 20.

This simplifies their launch schedule, as it allows SpaceX to launch as planned on August 12 and thus not interfere with an August 17 Russian spacewalk that is releasing two satellites from ISS. It will also give them plenty of time to replace the antenna that was damaged during launch prep, in an incident which they still have not described in any detail.

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Repeal of Obamacare fails in Senate

2:07 pm

Not surprisingly, a clean not-quite-full repeal of Obamacare failed today in the Senate, 45 to 54.

As expected, every Democrat voted to endorse their failed law. They were aided by seven fake Republicans who should all be challenged in primaries. These were Susan Collins of Maine, Dean Heller of Nevada, Shelly Moore Capito of West Virginia, Lisa Murkowski of Alaska, Lamar Alexander of Tennessee, John McCain of Arizona, and Rob Portman of Ohio.

A lot of pundits are going to claim that this failure to repeal is a betrayal of the Republican Party. I actually don’t see it as that. Had Mitch McConnell not allowed this vote I might have agreed, but he did allow it, thus forcing those from both parties who support Obamacare to go on record. We now know who those people are.

The real problem is that too many people in the U.S. no longer believe in freedom, instead want a government hand out, and have thus elected legislators (from both parties) who are only too happy to give it to them in exchange for power and wealth. If we are going to get rid of this bad law, as well as many other bad leftwing government policies, we need to vote these specific people out of office.

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Computer simulations prove that we can geoengineer the climate!

9:34 am

What could possibly go wrong? Global warming scientists have discovered, using computer simulations, that combining several different geoengineering techniques, what they call a “cocktail,” will save the planet and do no harm.

The team—which includes Carnegie’s Ken Caldeira, Long Cao and Lei Duan of Zhejiang University, and Govindasamy Bala of the Indian Institute of Science—used models to simulate what would happen if sunlight were scattered by particles at the same time as the cirrus clouds were thinned. They wanted to understand how effective this combined set of tools would be at reversing climate change, both globally and regionally. “As far as I know, this is the first study to try to model using two different geoengineering approaches simultaneously to try to improve the overall fit of the technology,” Caldeira explained.

The good news is that their simulations showed that if both methods are deployed in concert, it would decrease warming to pre-industrial levels, as desired, and on a global level rainfall would also stay at pre-industrial levels. But the bad news is that while global average climate was largely restored, substantial differences remained locally, with some areas getting much wetter and other areas getting much drier.

And if you believe that this simulation captures what will really happen should global warming scientists dump vast amounts of light-reflecting particles in the upper atmosphere while also adding chemicals to thin cirrus clouds, I have a bridge in Brooklyn I want to sell you. We don’t even really know if the climate is warming as these political activists (they are not really scientists) claim. We don’t really understand how the climate actually works. We don’t even understand fully how the Sun really fluctuates, and it is without doubt the climate’s most important influence. And these guys claim they now know what will happen if we play god with the atmosphere? Give me a break.

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The damage and repair of TDRS-M creates complicated scheduling problems

9:10 am

Because of the launch delay caused by the accident that damaged the antenna of NASA’s TDRS-M communication satellite, requiring its replacement, the agency is now faced with a cascading series of scheduling problems.

They are now aiming for an August 10 launch of TDRS-M on a ULA Atlas 5. This will then force a delay in the August 12 launch of a Dragon capsule to ISS to August 14, which can’t be delayed past August 16 because of a scheduled Russian spacewalk on ISS that must happen on August 17 because it involves the release of two satellites. Making things even more complicated is Dragon’s cargo, which includes mice for a rodent experiment. If it doesn’t occur before August 16, the mice will then have to be replaced with fresh mice, causing further delays.

There is then even the chance that these scheduling problems might impact SpaceX’s scheduled August 28’s launch of the X-37B, as well as ULA’s scheduled August 31 launch of surveillance satellite.

One additional tidbit: This Dragon will be the last unused cargo capsule. All future SpaceX cargo missions will use previously flown capsules.

I should add that these scheduling issues illustrate starkly the growing need for more launch sites. There is money to be made here, fulfilling this need.

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Interorbital’s first test rocket, Neptune 1, is almost ready for flight

8:56 am

Capitalism in space: Interorbital, a smallsat rocket company building what they hope will be the world’s smallest and cheapest rocket, have announced that their first test rocket, Neptune 1 Guidance Test Vehicle (N1 GTV), is nearing completion.

During the test flight, the rocket will simulate an orbital launch trajectory by using the main rocket engine’s throttling capability to vary the thrust-to-weight ratio, thus simulating the actual conditions that will be experienced during an orbital launch. After the rocket passes through the transonic phase and Max Q, the engine will gradually throttle down, slowing the rocket until it begins to hover. At this point, the rocket engine will be shut down and the rocket will be allowed to fall. At a safe altitude, a parachute will be deployed for vehicle and payload recovery.

They then plan to follow this with an orbital test flight. No dates however for any of these test flights have as yet been announced.

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Astronomers find unexpected comets in outer reaches of solar system

11:49 am

Using data from the WISE space telescope, astronomers have found that there are more comets lurking in the far reaches of the solar system than they had predicted.

Scientists found that there are about seven times more long-period comets measuring at least 0.6 miles (1 kilometer) across than had been predicted previously. They also found that long-period comets are on average up to twice as large as “Jupiter family comets,” whose orbits are shaped by Jupiter’s gravity and have periods of less than 20 years. Researchers also observed that in eight months, three to five times as many long-period comets passed by the Sun than had been predicted.

These are comets whose orbits never allow them to come close to the inner solar system, which allows them to remain puffy and large.

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The endless bands of Saturn

9:39 am

Cool image time. One of the images released by the Cassini science team this week when it announced the first results from the spacecraft’s weekly dives between Saturn and its innermost rings was a short video made from 137 images taken on its first dive on April 26, 2017.

It is absolutely worthwhile to view this video. It begins at Saturn’s north pole, looking down into what appears to be a bottomless vortex, and continues south to almost the equator. Along the way the movie captures what seems to be innumerable horizontal bands across the gas giant’s surface. Not only are do we see the major bands that have been observed from Earth for centuries, there are bands within bands, and bands within those bands. Like a fractal it appears that the deeper you go, the more horizontal jet streams you see.

Like Juno at Jupiter, the mysteries of a gas giant like Saturn is overwhelming. This is a big and very active planet. We understand almost nothing about its weather systems, its atmosphere, and its interior. And this glimpse by Cassini is only that, a mere glimpse. When Cassini’s mission ends in September, it will leave us a treasure trove of knowledge. It will also leave us a much larger library of unanswered questions, all of which will remain unanswered until we can return, decades hence, with new probes..

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Tupperware in space!

9:20 am

Capitalism in space: Tupperware and NASA have partnered to provide space-grown gardens an artificial material for roots to grow and be watered.

First flown to the ISS in 2014, the Vegetable Production System, (aka the “Veggie” facility), is an experiment for growing plants in zero gravity in a plastic greenhouse. It consists of a collapsible plastic tent with a controllable atmosphere lit by red, blue, and green LED lamps to promote growth. Since dirt and space travel don’t mix, the seeds are embedded in rooting “pillows” that take the place of soil to retain water and give the roots somewhere to grow.

The problem is that the pillows don’t hold onto water very well, so the hydroponic system keeps drying out unless it’s tended regularly. Given how much it costs to keep an astronaut on the station, time spent watering the lettuce is about as economical as hiring a brain surgeon to mow the lawn, so a team led by Howard Levine at the Kennedy Space Center is working on some upgrades for the system.

One key example is the semi-hydroponic Passive Orbital Nutrient Delivery System (PONDS) being produced by Tupperware. With over 75 years of experience working with food-grade plastics as well as injection molding and other plastic manufacturing processes, Tupperware is producing a new disposable pillow made of plastic mesh that uses capillary forces and unusual geometries to replace gravity and hold water in like a zero gravity sponge while permitting root formation.

In other words, rather than design and built the pillows itself, as it would have in the past, NASA has hired Tupperware to build them. I am willing to bet this is saving NASA both time and money.

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New Horizons team spots stellar eclipse by 2014 MU69

9:14 am

In an effort to learn as much as possible about New Horizons’ next target, Kuiper belt object 2014 MU69, the science team has successfully observed on July 17 a 0.2-second-long eclipse of a star by that object.

This was the third occultation by 2014 MU69 that the science team attempted to catch. With the first, on the ground, they saw nothing. The second, using the flying observatory SOFIA, was more successful, as was the third attempt last week.

Though they haven’t yet released their findings, they say the data from the last two observations has allowed them to determine the rough shape and size of 2014 MU69. This is crucial information needed for planning the observations of it during New Horizons January 1, 2019 fly-by.

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Another space company partners with Luxembourg

9:03 am

Capitalism in space: Luxembourg has formed a new business partnership with Magna Parva, a United Kingdom company, to develop in-space manufacturing technology.

Within the framework of this MoU, the developments and research to take place in Luxembourg are related to the project for in-space manufacturing of composite beams equipped with antennas. Kleos Space will collaborate with EmTroniX, a Luxembourg-based company specialized in electronics development, as well as with the Luxembourg Institute of Science and Technology (LIST) on this subject. The Government will support the development of the in-space manufacturing technology by providing funding through the Luxembourg space program (LuxIMPULSE).

I suspect the manufacturing will be some form of 3D printing. However, it is unclear to me where in space this manufacturing will take place. Will it occur on ISS or the Chinese space station expected to launch in a few years? Or is Luxembourg planning some new venture that either includes some privately built station (Bigelow?) or an unmanned robot in orbit?

Either way, Luxembourg is once again investing its tax revenue in what it thinks will be profitable endeavors in space, and that venture capitalism is continuing to attract companies to that nation.

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Brooks and Dunn – Only in America

6:01 pm

An evening pause: In honor of what happened today, 48 years ago, when three American astronauts safely landed home on Earth, after walking on the Moon. From the chorus:

Only in America
Dreamin’ in red white and blue
Only in America
Where we dream as big as we want to
We all get a chance
Everybody gets to dance

It will be the American ideas of freedom, individual achievement, and capitalism that will make the settlement of the solar system possible. Other nations will participate, but it will still be these ideas that fuel the journey.

Hat tip Jim Mallamace.

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California iman calls for genocide against all Jews

4:06 pm

Can’t we all just get along? The Friday sermon of a California iman called for the killing of all Jews because Israel had the nerve to put up metal detectors at the entrances to the Temple Mount in Jerusalem.

And why did Israel do this? Because three Arabs murdered two Israeli policemen in cold blood at the site.

The bottom line here is that the Islamic world wants to kill Jews, and will find any excuse to do it, even excuses as silly as an Israel effort to prevent further violence. Listen to this guy’s sermon at the link. He makes it very clear that this is a Muslim requirement — from the Koran — to kill Jews. And Israel should negotiate with these fanatics?

I want to also point out that this iman was making his speech in California, a place that increasingly fashions itself a haven for fascists and the power-hungry. Note also these details about the mosque from which he made this speech:

The Islamic Center of Davis in Northern California is located about 15 miles from the state’s capital, Sacramento. It has, in the past, hosted events featuring Waleed Idris al-Menessey, who has also called for Muslims to kill Jews and impose Sharia law on non-Muslims law worldwide. Al-Meneesey’s Minneapolis-based Islamic center has produced five recruits for the Islamic State terrorist organization. On its online resources page, the Islamic Center of Davis links to several known Muslim Brotherhood front groups, such as the Council on American-Islamic Relations (CAIR), the Islamic Society of North America (ISNA), and the Muslim Students Association (MSA).

If I, a Jew, lived in Sacramento I would not feel safe.

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Facebook moves to protect Islam from criticism

12:02 pm

Even while Facebook and Twitter allow violent threats to be posted against critics of Islam, the sites are moving to censor and block posts by those critics.

What happened on that day was that Facebook and Twitter began to censor Jihad Watch as “hate speech,” in accordance with the assurances they had given to the European Union.

Facebook, immediately after concluding an agreement with the European Union, began moving aggressively against foes of jihad terror and mass Muslim migration in the West. Nina Rosenwald, the president and founder of the conservative think tank Gatestone Institute, on June 2, 2016 recorded Facebook’s haste to implement the new speech regulations: “On Tuesday, the European Union (EU) announced a new online speech code to be enforced by four major tech companies, including Facebook and YouTube. On Wednesday, Facebook deleted the account of Ingrid Carlqvist, Gatestone’s Swedish expert.”

Carlqvist’s crime, according to Rosenwald, was to take note of real crimes by Muslim migrants: “Ingrid had posted our latest video to her Facebook feed—called ‘Sweden’s Migrant Rape Epidemic.” In that video, said Rosenwald, “Ingrid calmly lays out the facts and statistics, all of which are meticulously researched.” Rosenwald added that the video was adapted from a “research paper that Gatestone published last year. The video has gone viral—racking up more than 80,000 views in its first two days. But the EU is quite candid: it is applying a political lens to their censorship…. ”

This is just one example. The article gives others, including examples where death threats against Islam’s critics are allowed to remain online.

Just one of many reasons I will have nothing to do with Facebook or Twitter.

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First results from Cassini’s dives between Saturn and its rings

11:35 am

The first results from Cassini’s weekly dives between Saturn and its innermost rings have now been released.

The big surprise so far is the lack of a tilt to Saturn’s magnetic field.

Based on data collected by Cassini’s magnetometer instrument, Saturn’s magnetic field appears to be surprisingly well-aligned with the planet’s rotation axis. The tilt is much smaller than 0.06 degrees — which is the lower limit the spacecraft’s magnetometer data placed on the value prior to the start of the Grand Finale.

This observation is at odds with scientists’ theoretical understanding of how magnetic fields are generated. Planetary magnetic fields are understood to require some degree of tilt to sustain currents flowing through the liquid metal deep inside the planets (in Saturn’s case, thought to be liquid metallic hydrogen). With no tilt, the currents would eventually subside and the field would disappear.

Any tilt to the magnetic field would make the daily wobble of the planet’s deep interior observable, thus revealing the true length of Saturn’s day, which has so far proven elusive.

They also have gotten lots of much better images of the planet’s cloud tops.

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