Tag: spaceflight

Judge strikes down Tucson/Worldview spaceport deal

8:40 am

A deal between Pima County in Tucson Arizona and the space tourism balloon company World View has been struck down.

The Tucson judge sided with the libertarian Goldwater group, which argued Pima County ran afoul of state rules governing subsidies and incentives to businesses. “Judge Woods’ ruling protects Pima County taxpayers from having to foot the bill for World View’s untested business model,” said Jim Manley, senior attorney at the Goldwater Institute. “Instead of relying on a sweetheart deal from taxpayers, World View will need to pay market rates to lease its building, just like every other business in Pima County.”

Goldwater attorneys didn’t like that Pima County approved the deal without a popular ballot measure and that the deal was done without an appraisal. Goldwater also argued the lease deal was for less than market rates for a custom building. “The county is free to renegotiate the lease,” said Manley, “but only after they appraise the building, hold a public auction, and lease the building to the highest bidder. All of that will protect taxpayers from illegally subsidizing a private business.”

As much as I want this business to thrive, I think the Goldwater Institute was right. Pima County violated numerous laws and even some parts of the state constitution putting together this deal. Even if there was no corruption here, it opened the door to future backroom corruption if the deal was allowed. Now, I expect World View and the county will have to renegotiate.

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Congressional report worries over Falcon 9 engine cracks

11:05 pm

A forthcoming congressional report, reported by the Wall Street Journal, reveals that NASA is concerned about cracks that occur in the turbopumps of SpaceX’s Merlin engines.

The newspaper says the report has found a “pattern of problems” with the turbine blades within the turbopumps, which deliver rocket fuel into the combustion chamber of the Merlin rocket engine. Some of the components used in the turbopumps are prone to cracks, the government investigators say, and may require a redesign before NASA allows the Falcon 9 booster to be used for crewed flights. NASA has been briefed on the report’s findings, and the agency’s acting administrator, Robert Lightfoot, told the newspaper that he thinks “we know how to fix them.”

A spokesman for SpaceX, John Taylor, said the company already has a plan in place to fix the potential cracking issue. “We have qualified our engines to be robust to turbine wheel cracks,” Taylor said. “However, we are modifying the design to avoid them altogether. This will be part of the final design iteration on Falcon 9.” This final variant of the Falcon 9 booster, named Block 5, is being designed for optimal safety and easier return for potential reuse. According to company founder Elon Musk, it could fly by the end of this year.

Here’s the real scoop: SpaceX initially built the engines to fly once, just as every single rocket company has done in the entire history of space, excluding the space shuttle. Under these conditions, the cracks could be considered an acceptable issue, which is what they mean when they say “We have qualified our engines to be robust to turbine wheel cracks.” My guess is that they tested the engines, found that the cracks were not a significant problem for a single flight, especially because the Falcon 9 rocket uses nine Merlin engines on the first stage and thus has some redundancy should one fail. And based on SpaceX’s flight record — no launch failures due to failed engines — that conclusion seems reasonable.

SpaceX is now redesigning to eliminate the cracks, however, because such cracks are not acceptable for engines that will fly multiple times on reused first stages.

Thus, this story, as leaked, appears to me to be a hit job by powers in Congress who dislike the competition that SpaceX poses to big government rockets like SLS. SLS will use salvaged shuttle engines, designed initially for many reuses, and thus are superior in this manner to SpaceX’s Merlin engines. The shuttle engines however were also built by the government, which didn’t care very much about the cost of development, or making any profits. The comparison thus is somewhat bogus. Moreover, I suspect these cracks were only discovered after SpaceX successfully landed and recovered some first stages. To put them on trial in the press now for doing good engineering research and redevelopment seems somewhat inappropriate.

The report itself has not yet been released, though it does also note lingering issues with the parachutes being developed for Boeing’s Starliner capsule.

Overall, both companies are struggling to start their operational flights by 2019. For Congress or NASA to try to put more roadblocks up in that development seems most counterproductive.

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More new robots from Boston Dynamics

4:34 pm

The video at the link shows off SpotMini, of video of which I posted previously. However, the first robot shown is one they have named Handle and is something they admit could be “nightmare-inducing.” It walks upright on two legs, but instead of feetpods it has wheels, giving it the ability to move very fast. And for some reason, they put its arms on backwards so that the elbows bend inward instead of outward.

Watch the video. The robot design work here is truly breath-taking.

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The vanishing volcanoes of Ceres

10:02 am

New research based on Dawn data suggests that volcanoes on Ceres flatten and disappear over time.

NASA’s Dawn spacecraft discovered Ceres’s 4-kilometer (2.5-mile) tall Ahuna Mons cryovolcano in 2015. Other icy worlds in our solar system, like Pluto, Europa, Triton, Charon and Titan, may also have cryovolcanoes, but Ahuna Mons is conspicuously alone on Ceres. The dwarf planet, with an orbit between Mars and Jupiter, also lies far closer to the sun than other planetary bodies where cryovolcanoes have been found.

Now, scientists show there may have been cryovolcanoes other than Ahuna Mons on Ceres millions or billions of years ago, but these cryovolcanoes may have flattened out over time and become indistinguishable from the planet’s surface. They report their findings in a new paper accepted for publication in Geophysical Research Letters, a journal of the American Geophysical Union. “We think we have a very good case that there have been lots of cryovolcanoes on Ceres but they have deformed,” said Michael Sori of the Lunar and Planetary Laboratory at the University of Arizona in Tucson, and lead author of the new paper.

The cause of the flattening?

Viscous relaxation is the idea that just about any solid will flow, given enough time. For example, a cold block of honey appears to be solid. But if given enough time, the block will flatten out until there is no sign left of the original block structure. On Earth, viscous relaxation is what makes glaciers flow, Sori explained. The process doesn’t affect volcanoes on Earth because they are made of rock, but Ceres’s volcanoes contain ice – making viscous relaxation possible.

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UAE considers initiating its own manned space program

9:37 am

The competition heats up: At a space conference this week in Abu Dhabi, a UAE official said that his country might begin work on a manned space program.

He also said that they plan a follow-up to their Hope Mars mission, which now has a July 2020 launch date.

The UAE’s prime goal right now with their space effort is to promote the development of a new aerospace industry. Thus, I do not expect them to accomplish much in the near future. Even their Mars mission is I think mostly being built and launched by others (India is helping with the spacecraft and Japan is launching it). In the long term, however, this effort is wise, and will eventually produce for them a real industry.

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Juno’s next Jupiter fly-by today

9:29 am

Juno is set to make its fourth close fly-by of Jupiter today, dipping to within 2,670 miles of the gas giants cloud tops.

The Juno science team continues to analyze returns from previous flybys. Revelations include that Jupiter’s magnetic fields and aurora are bigger and more powerful than originally thought and that the belts and zones that give the gas giant’s cloud top its distinctive look extend deep into the planet’s interior. Peer-reviewed papers with more in-depth science results from Juno’s first three flybys are expected to be published within the next few months. Also, JunoCam, the first interplanetary outreach camera, is now being guided with the assistance from the public — people can participate by voting for what features on Jupiter should be imaged during each flyby.

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Curiosity’s drill remains out of commission

9:21 am

Ireson Hill

In a science update on Curiosity’s research in Gale Crater, this Science journal article today gives a good overall update on Curiosity’s technical condition.

Since early December 2016, Curiosity hasn’t been able to drill. The problem, likely a stuck brake on the mechanism for extending the drill bit, is serious. “There is apprehension,” says Ashwin Vasavada, Curiosity’s project scientist at the Jet Propulsion Laboratory in Pasadena, California. But the drill still responds intermittently. “We’re not in a situation where it’s completely dead.”

Still, the clock is ticking for the aging rover, and some outside scientists regret not having used a wet chemistry cup. Rocks have punctured its wheels, and the output of its decaying radioactive power source has dropped by 15%. Jack Mustard, a planetary scientist at Brown University, says he understands the team’s hesitancy. But he wished the “mission had moved more quickly with the wet chemistry experiments,” he says. “I am eager to see what we can learn.”

The wet chemistry cup, designed to look for organic life, is an experiment that requires use of the drill but the science team has held off doing. Now it might be too late.

At the moment Curiosity is approaching [see Sol 1598-1599] the small hill that had been to its southwest in my January 18, 2017 update and shown in the image above. I had thought they might make a side trip there on their way up Mount Sharp, and they have, with their actual route taking them around the backside of the hill.

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Russia proposes increased space cooperation with the U.S.

9:48 pm

They need the money: At a science conference on Tuesday the Russian ambassador to the United States stated that his country would welcome increased space cooperation between the two countries.

“I think it would be premature for me to speculate as to whether this zone of overlapping interests will increase or decrease,” Kislyak said. “We haven’t heard a new policy yet from the United States.” He suggested, though, there may be opportunities for the countries to cooperate on NASA’s long-term plans for human Mars exploration. “That is moon exploration, which is very much on our agenda. It’s space medicine and many, many other issues,” he said. “Our programs are not identical, but there’s always been a lot of overlap that provides room for serious and significant cooperation.”

“If the U.S. government chooses programs that would be extending that kind of cooperation,” he added, “they will find us to be willing to work with you.”

As I said, they need the cash. They want to keep their space industry alive, but low oil prices combined with the corruption that has shut down their launch industry has left them very cash poor. A combined Russian/SLS/Orion project to the Moon would be very helpful for them.

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ESA commits $91 million to reusable rocket engine development

7:32 pm

The competition heats up? Despite a general lack of interest in reusability, the ESA has now committed $91 million to develop a new low cost prototype reusable rocket engine.

In an interview with SpaceNews, Airbus Safran Launchers CEO Alain Charmeau said FLPP is allocating 85 million euros ($91 million) to Prometheus to fund research and development leading to a 2020 test firing. Now that Prometheus is an ESA program, Charmeau expects more countries will get involved. “ESA will pay the contract to Airbus Safran Launchers and then Airbus Safran Launchers will cooperate with European industry, of course France and Germany, but we will have also contributions from Italy, Belgium, Sweden and probably a couple of others to a smaller extent,” Charmeau said.

This project reminds me of many NASA development projects. The agency spends the money to do a test firing, but the prototype is never used and gets abandoned as soon as the test is completed.

Things might change, however, come the 2020s. By then I think American companies will be quite successful in their effort to create reusable rockets, and that will leave Europe in the lurch competitively. Their solution at this time for combating that future competition however is not getting more competitive. Instead, as noted in the article at the link, Airbus Safran, the company building Ariane 6, wants the ESA to compel its members to use their rocket, regardless of cost.

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Russian prosecutors indict four rocket engineers for Proton failure

7:17 pm

This won’t solve Russia’s problems: Russian prosecutors have recommended criminal charges against four rocket engineers for failing to properly calculate the right amount of fuel, resulting in a Proton launch failure.

According to the spokesman, Energiya department head Balakin, section head Martynov and his deputy Lomtev responsible for asdeveloping operational documentation failed to ensure that their subordinate, engineer Bolshigin, should timely adjust the calculation formula for resetting the fuel control system. “The document on the need for such adjustment was submitted to the organization’s relevant department but was written off by the engineer as fulfilled. As a result, the calculation formula remained unadjusted,” the spokesman said. “Subsequently, Balakin, Martynov, Lomtev and Bolshigin who knew for sure that the formula for the calculation of the fueling level contained incorrect data that could not be used during a rocket launch agreed operational documentation without pointing to a mistake in calculations,” the spokesman for the Prosecutor General’s Office said.

Putting these guys in prison is probably the worst thing the Russians can do. It will strike fear throughout their entire aerospace industry, causing all other engineers to take as few risks as possible, or leave the industry entirely. What the Russians should do is simply fire them, and reward those that noted the problem with promotions and increased pay.

In a truly competitive free market such a response will work, because even if the companies don’t reform themselves new companies will step forward to replace them. Russia however does not have a truly competitive free market, and so their only recourse is top-down bullying and threats. “Do it right or we will jail you!”

I should add that the company involved, Energia, has nothing to do with the recent corruption discovered in the construction of the upper stage engines for both Proton and Soyuz. That involved a different Russian company entirely.

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The private weather industry moves forward

9:23 am

Link here. Key quote:

Early next month, aerospace start-up Spire Global of Glasgow, UK, will send a mini-satellite into space aboard an Indian government rocket. This ‘cubesat’ will join 16 others that are beaming a new type of atmospheric data back to Earth — and some scientists worry that such efforts are siphoning funding away from efforts to push forward the science of weather forecasting. Spire will begin providing observations to the US government on 30 April.

The probes track delays in radio signals from Global Positioning System (GPS) satellites as they pass through the atmosphere — a technique known as radio occultation. Researchers can use the data to create precise temperature profiles of the atmosphere to feed into weather-forecasting models — and eventually, perhaps, climate models.

Spire and its competitor GeoOptics of Pasadena, California, are participating in a pilot project announced in September by the US National Oceanic and Atmospheric Administration (NOAA), which is under pressure from the US Congress to determine whether it can cut costs by using commercial weather data. But scientists worry that such efforts are hampering the development of radio occultation. For years, they have sought federal funding for a project to advance the technique, but Spire and its competitors say they can offer high-quality data for a fraction of the price. [emphasis mine]

The quotes I have highlighted illustrate the hidebound leftist scientific opposition to introducing private enterprise into weather research. The article, published in the journal Nature, never once articulates in any way how these private efforts will hurt scientific research. What it does show is that the private effort will cost a tenth of the government effort while getting launched much faster. The money, however, will go to these private companies, and not the scientific factions that up until now have lived on the government money train.

The complaints here are the same as those I saw in NASA back about a decade ago when NASA first considered hiring private companies to provide it cargo to ISS. This is a turf war. NOAA is now being pressured by Congress to do the same: stop building big expensive weather satellites and buy the service for much less from the private sector. The scientific community sees this as a threat to its funding and is trying to stop it.

With Republicans controlling all three branches of the federal government I think this opposition will be fruitless, and we shall see the shift to private enterprise in weather data-gathering to accelerate.

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Government-owned Alaska Aerospace considers second spaceport

9:02 am

The competition heats up: State-owned Alaska Aerospace is considering opening a second spaceport outside the state and closer to the equator.

Alaska Aerospace operates the Pacific Spaceport Complex Alaska. The Kodiak Island complex is capable of polar, sun-synchronous and high-inclination orbits, but does not support the equatorial launches that make up most of the industry demand. With the new launch facility, Campbell said having equatorial launches will give the corporation a competitive advantage and also bring more customers to Kodiak.

The state no longer funds the corporation, which has never made money. Still, it now has contracts with Rocket Lab and Vector Space Systems and this new move is an obvious effort to make itself more viable.

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Recovered Falcon 9 first stage prepped for launch

8:53 am

The competition heats up: SpaceX on Tuesday revealed that last week it has completed the standard static fire testing of the recovered Falcon 9 first stage that it plans to relaunch in March.

A March launch would mean an 11-month turnaround, which is far from optimal, but understandable for the first time. SpaceX’s founder and chief executive, Elon Musk, has acknowledged the company must do better in the future if resuable flight is to become economically viable. He says the next—and likely final—iteration of the Falcon 9 rocket will be optimized for reuse. “Block 5 is the final upgrade of the Falcon architecture,” he tweeted earlier this year. “Significantly improves performance & ease of reusability. Flies end of year.”

It now seems likely that SpaceX will fly the landed boosters it currently has, at most once or twice, before retiring them, instead of multiple times. Although the company hasn’t elaborated on the problems with the engines, booster structure, or composite materials that have shown wear and tear after their orbital launches and returns, Musk is confident that changes to the Block 5 version of the rocket will solve the problem. “I think the F9 boosters could be used almost indefinitely, so long as there is scheduled maintenance and careful inspections,” he has said.

In other words, SpaceX has had — for the first time in history — the opportunity to inspect a number of used first stage rockets, and that precious knowledge is making it possible for them to upgrade the stage design to make future stages more hardy. In fact, those future stages won’t be stages, but reusable vessels that SpaceX could even name if it wished.

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Plotting the interstellar path to Proxima Centauri

8:40 am

Scientists have calculated the slingshot route that Breakthrough Starshot’s tiny interstellar spacecraft should take in order to reach Proxima Centauri while also gathering the maximum scientific data while zipping past the binary stars of Alpha Centauri.

The solution is for the probe’s sail to be redeployed upon arrival so that the spacecraft would be optimally decelerated by the incoming radiation from the stars in the Alpha Centauri system. René Heller, an astrophysicist working on preparations for the upcoming Exoplanet mission PLATO, found a congenial spirit in IT specialist Michael Hippke, who set up the computer simulations. The two scientists based their calculations on a space probe weighing less than 100 grams in total, which is mounted to a 100,000-square-metre sail, equivalent to the area of 14 soccer fields. During the approach to Alpha Centauri, the braking force would increase. The stronger the braking force, the more effectively the spacecraft’s speed can be reduced upon arrival. Vice versa, the same physics could be used to accelerate the sail at departure from the solar system, using the sun as a photon cannon.

The tiny spacecraft would first need to approach the star Alpha Centauri A as close as around four million kilometres, corresponding to five stellar radii, at a maximum speed of 13,800 kilometres per second (4.6 per cent of the speed of light). At even higher speeds, the probe would simply overshoot the star.

While most of this is hardly revolutionary, this is still the first time anyone has done the hard math based upon a real mission concept.

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SpaceX to double leased space at Los Angeles port

10:16 pm

The competition heats up: SpaceX has requested a doubling of its leased space the port of Los Angeles in order to facilitate the return of first stages launched from Vandenberg.

The Board of Harbor Commissioners will vote at its Thursday morning meeting on a deal to enlarge Space Exploration Technologies Corp.’s footprint at San Pedro’s outer harbor. The company hopes to lease 4.6 acres of land and water area along Berths 51 to 53 for $23,735 a month, plus insurance and any incidental costs.

In addition to extra space, the lease agreement allows the company to have berthing rights, install a chain-link fence around the property, build a concrete rocket-support pedestal, and add an office trailer, guard shack and portable restrooms, according to a staff report prepared for the commission.

According to the article, the increased space is needed because of the company’s plans to launch every two weeks from its pads at Kennedy and Vandenberg.

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U.S. 2020 Mars rover faces delays

9:26 pm

A new inspector general report has pinpointed a number of issues that could cause a delay in the 2020 launch of the next American Mars rover mission.

The biggest risk to the mission, according to NASA OIG, is the sampling system that will be used to collect and store samples of Martian rock and soil that a future mission will gather for return to Earth. That system, an essential part of the mission, has several key technologies that are less mature than planned at this phase of the mission’s development. “The immaturity of the critical technologies related to the Sampling System is concerning because, according to Mars 2020 Project managers, the Sampling System is the rover’s most complex new development component with delays likely to eat into the Project’s schedule reserve and, in the worst case scenario, could delay launch,” OIG stated.

I find it puzzling that the sampling system is an issue. This rover is essentially based on Curiosity, which has very sophisticated equipment for grabbing and even storing samples for periods of time. I don’t understand why such systems could not be quickly revised for future retrieval.

Nonetheless, there are other problems however.

Two instruments on the Mars 2020 mission have also suffered problems. One, called MOXIE, is designed to test the ability to generate oxygen on Mars, saw its estimated increase by more than 50 percent during its development. NASA has taken steps to reduce some of that cost growth by eliminating development of an engineering model and skipping further design improvements in one element of MOXIE.

Another instrument designed to study atmospheric conditions on Mars, MEDA, has suffered delays because of a “financial reorganization” by its developer, Spain’s National Institute for Aerospace Technology. OIG concluded in its report that MEDA is unlikely to be ready for delivery to NASA in April 2018, as currently scheduled. That could require adding MEDA to the rover later in the overall assembly process, or flying the mission without the instrument.

One of the reasons the Obama administration decided to make this 2020 rover mission a reboot of Curiosity was to save cost and development time. Thus, it does not speak well for NASA’s planetary program that they are having these problems.

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Japanese experiment to remove space junk fails

7:22 pm

A Japanese experiment designed to test technology for removing space junk and flown on that country’s most recent cargo ship to ISS has failed to deploy its tether as planned.

The system, designed by the Japanese space agency (JAXA) and a fishing net company, should have unfurled a 700-meter (2,300 ft) tether from a space station resupply vehicle that was returning to Earth. According to JAXA scientists, however, the system appears to have faltered.

This only adds another technical failure to a string of technical failures by Japanese spacecraft. And even though the cargo ship operated as planned, its launch was delayed when engineers discovered a leak during testing. Overall, it increasingly appears that Japan’s space program has the same kind of quality control problems as Russia.

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India to launch spare GPS satellite because of single satellite failure

8:42 am

Because of the failure of the atomic clocks on one of its GPS satellites have failed, India now plans to launch one of their spare satellites to increase the system’s redundancy.

The article does not say whether they will make any changes to the clocks on the spare satellite, which are the same as the failed clocks on the Indian satellite and were all built by the same European company that built the clocks on Europe’s Galileo GPS satellites that are also failing.

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Next Falcon 9 launch delayed as SpaceX rearranges manifest

8:13 am

Because the launchpad at Kennedy is not quite ready for the planned February 3 launch of a commercial satellite, SpaceX has rearranged its launch manifest to switch that launch with the next Dragon mission to ISS, essentially delaying their next launch by two weeks.

With [launchpad] 39A still not ready to debut in its new role with SpaceX, the first mission set to launch from this pad – the Falcon 9 launch with EchoStar 23 – was pushed to the right a number of times. Although 39A is very close to being ready to conduct launches, EchoStar 23’s launch date was deemed to be too close to the mid-February target for the CRS-10 Dragon mission.

SpaceX and NASA discussed the situation on Friday night, before deciding it would be prudent to place EchoStar 23’s launch after CRS-10, allowing engineers to finalize modification and checkout work on the famous pad and simultaneously avoid a potential delay to the important Dragon mission to the Station.

The real problem here is that SpaceX had planned to have two working launchpads by this time, but doesn’t because their first pad was damaged in the September 1 Falcon 9 launchpad explosion. The consequences is that, for at least the next month, they will not be able to set a pace of a launch every two weeks.

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Soyuz launches successfully from French Guiana

8:53 am

A Russian Soyuz rocket, built for Arianespace and launched from French Guiana, successfully placed a commercial satellite in geosynchronous orbit on Friday.

The launch has some significance. First, it was the first time a Soyuz rocket placed a payload into geosynchronous orbit. Second, the payload was the first satellite built by a German company in more than 25 years

Finally, and most important, it demonstrated that at least one configuration of the Soyuz rocket is still operational as Russia investigates the corrupt practices at the company that has been building upper stage engines for both its Soyuz and Proton rockets.

Update: Russia has revealed that this on-going investigation will now delay the next Proton rocket launch for 3.5 months. This means that launch will occur sometime in May, and will occur just weeks short of a full year after the last Proton launch on June 9, 2016.

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ISS twin study suggests weightlessness stresses the body in unexpected ways

9:21 am

The first preliminary results from NASA’s comparison of Scott Kelly, who spent 340 days on ISS, and his twin brother Mark, who did not, suggests that weightlessness stresses the body’s genetic system in ways not previously measured.

Preliminary results are in from NASA’s unprecedented twin study — a detailed probe of the genetic differences between astronaut Scott Kelly, who spent nearly a consecutive year in space, and his identical twin Mark. Measurements taken before, during and after Scott Kelly’s mission reveal changes in gene expression, DNA methylation and other biological markers that are likely attributable to his time in orbit.

From the lengths of the twins’ chromosomes to the microbiomes in their guts, “almost everyone is reporting that we see differences”, says Christopher Mason, a geneticist at Weill Cornell Medical College in New York City. He and other project scientists reported the early results on 26 January in Galveston, Texas, at a meeting of scientists working in NASA’s Human Research Program. “The data are so fresh that some of them are still coming off the sequencing machines,” Mason says.

It remains unclear at this point the medical consequences of these genetic changes. The data from this first experiment is still too preliminary, and it only involves looking at two people, a sample that is obviously too small. Nonetheless, it is a beginning, and of some significance.

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Fifty years ago today: the Apollo 1 launchpad fire

9:12 am

Link here.

Fifty years ago Friday, the first – but sadly not the last – fatal spaceflight accident struck NASA when a fire claimed the lives of Virgil “Gus” Grissom, Roger Chaffee, and Ed White during a training exercise at Launch Complex 34. The accident, a major setback for the struggling Apollo program, ushered in the first understanding of the “bad day” effects of schedule pressure for spaceflight and brought with it words and reminders that still echo today.

The article provides a very detailed and accurate look at the history and causes of the accident, as well as its consequences, which even today influence American space engineering.

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Jupiter’s Little Red Spot

9:24 am

Little Red Spot

Cool image time! The image on the right, cropped to show here, is focused in on Jupiter’s Little Red Spot, a storm that formed by the merger of three smaller storms about a decade ago. The cropped image comes from a wider view of Jupiter from Juno that is quite amazing.

Note that the Little Red Spot, while only a third the size the more well known Giant Red Spot, is still about the size of the Earth.

This storm is the third largest anticyclonic reddish oval on the planet, which Earth-based observers have tracked for the last 23 years. An anticyclone is a weather phenomenon with large-scale circulation of winds around a central region of high atmospheric pressure. They rotate clockwise in the northern hemisphere, and counterclockwise in the southern hemisphere. The Little Red Spot shows very little color, just a pale brown smudge in the center. The color is very similar to the surroundings, making it difficult to see as it blends in with the clouds nearby. Citizen scientists Gerald Eichstaedt and John Rogers processed the image and drafted the caption.

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