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Dr. Eric J. Fielding, PhD

@EricFielding.mastodon.social.ap.brid.gy
199 followers 24 following 396 posts

Geophysicist at lab in Pasadena, California. Statements and opinions posted by me are my own and not those of my employer. he/him. Header image is […] 🌉 bridged from mastodon.social/@EricFielding on the fediverse by fed.brid.gy

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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 03/10/2026
The heat wave is here in Pasadena. We had 38 C/100 F this afternoon. At 7 PM, it is still 32 C/90 F.
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 06/09/2026
Rain woke me up in Pasadena. They predicted some chance of rain today, but it was strong rain for 20 minutes. Radar map from Apple Weather app.
Map of rain intensity for Los Angeles area. Strong rain over almost all of the city and many adjacent cities at 5:30 AM PDT September 6
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 15/08/2026
The tragedy of Professor Jason Arday is being “weaponized” by the right against black academics in the UK and beyond. I found this opinion perspective in the Guardian helpful. www.theguardian.com/commentisfree/2…
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 27/07/2026
NASA-ISRO SAR (NISAR) satellite mission releases both L-band and S-band data. L-band is global coverage in new release on 20 July. S-band is for the Indian subcontinent and some additional areas, released on 15 July. See NASA press release with more details and “hummingbird” shape found in radar […]
mastodon.social
Original post on mastodon.social
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 20/07/2026
Washington Post has an article today about debris in Low Earth Orbit (LEO), but it only covers the unintended debris from satellite destruction tests and other sources. It barely mentions the huge number of Starlink satellites only because they need to avoid the debris. Gift article link […]
mastodon.social
Original post on mastodon.social
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Reposted by Dr. Eric J. Fielding, PhD
Obbie King @obbiez.urbanists.social.ap.brid.gy · 19/07/2026
They booked the killer for manslaughter, but this sounds more like vehicular homicide to me. "..Rapp and a fellow bicyclist were riding on a local road when Medina passed them in his car, stopped, and drove his vehicle in reverse. Medina then hit Rapp.." […]
urbanists.social
Original post on urbanists.social
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 27/06/2026
The NASA-ISRO SAR (NISAR) satellite imaged Venezuela on June 25 with L-band (24 cm wavelength) synthetic aperture radar (SAR). The NISAR Urgent Response system was activated and made an interferogram (InSAR) with the previous pass on June 13. Colleague […] [Original post on mastodon.social]
Map of north-central Venezuela with NISAR surface displacements shown in color. The NISAR swath is 240 km wide. Colors run from red to white to blue as described in the post. InSAR only measures displacement on land, so ocean and lakes have no measurement. The background image of the map is from Google satellite images with natural color on land and bathymetry in the ocean.
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@RonSupportsYou @ronsupportsyou.mastodon.social.ap.brid.gy · 18/06/2026
Susan Rice (former national security advisor) wrote this about Trump's Memorandum of Understanding: "This is a jaw-dropping, horrific surrender document complete with hundreds of billions in reparations. It is the predictable result of incompetent negotiation and the foolhardy strategic […]
mastodon.social
Original post on mastodon.social
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404 Media @feed.www.404media.co.ap.brid.gy · 17/06/2026
A $10 million procurement reviewed by 404 Media indicates ICE is buying records related to immigrants’ tax identifiers. “It looks for all the world like Trump is trying to skirt the law and a court order to fuel his mass-deportation campaign,” Senator Ron Wyden said.
404media.co
ICE Appears to Be Buying Immigrants’ Tax Identifiers from a Data Broker
Immigration and Customs Enforcement (ICE) appears to be purchasing records related to immigrants’ tax identifiers from a data broker, potentially skirting a court order that banned ICE from sourcing such information, according to Senator Ron Wyden and government procurement records reviewed by 404 Media. The contract, worth nearly $10 million, is related to ITINs, or Individual Taxpayer Identification Numbers, which is the identifier many undocumented people use to file their taxes rather than a Social Security number (SSN). “It looks for all the world like Trump is trying to skirt the law and a court order to fuel his mass-deportation campaign,” Senator Wyden told 404 Media in an emailed statement after reviewing the procurement records. “A court has already struck down an agreement between the IRS and Homeland Security to illegally share ITINs and other personal information. A contract to buy that same information from private data brokers is a clear end-around both taxpayer privacy laws and a court order.” 💡 ****Do you know anything else about this contract? Do you work at a company handling ITINs? I would love to hear from you. Using a non-work device, you can message me securely on Signal at joseph.404 or send me an email at joseph@404media.co.**** The contract, signed on June 5 with Thundercut Technology LLC, is for “ITIN data subscription and analytics for HSI agents in fraud investigations.” It is not clear what exact data is part of this subscription—be that names and addresses of people who have ITINs, or just the ITINs themselves—but ITINs are an important identifier that the IRS gives to undocumented and other people who cannot get a SSN. Undocumented people pay tens of billions of dollars in taxes. ‘Fraud’ has been a common justification for ICE’s activity during the Trump administration’s mass deportation campaign. Part of ICE’s and other parts of the Department of Homeland Security’s (DHS) large scale operation through Minnesota last year was to investigate claims of fraud among Somalian immigrants. Nearly 90 percent of HSI, encompassing more than 6,000 officials, have been reassigned from the subagency’s normal responsibilities, like investigating money laundering or child abuse, to immigration enforcement, according to data obtained by the Cato Institute. Screenshots of the procurement record. The contract is for $9,968,353.56. Thundercat is an established vendor and often resells other companies’ technology or surveillance tech to the U.S. Thundercat did not respond to a request for comment, and it is not clear which company Thundercat may be reselling a product from in this instance. Over the last year or so ICE has been trying to get access to data held by the IRS on undocumented people. The two agencies originally came to an agreement in April 2025, in which the IRS would give ICE taxpayer identification numbers and last known addresses on more than 1.2 million people, Politico reported. In November a judge temporarily blocked that data sharing, saying the practice was “unlawful,” NBC News reported. In February, a second judge blocked it again, saying the arrangement may “significantly raise the risk of misidentification of taxpayers,” FedScoop reported. A report from the Taxpayer Inspector General for Tax Administration found that the IRS failed to consistently and accurately match taxpayer information with ICE’s own records, Politico reported this month. The IRS admitted it inappropriately shared information with ICE, the report added. ICE and other parts of DHS have repeatedly purchased access to data rather than collecting it themselves or sourcing it via a search warrant or similar legal mechanism. Both ICE and Customs and Border Protection (CBP) have purchased smartphone location data. 404 Media previously reported ICE purchased access to a tool called Webloc that lets the agency monitor phones in entire neighborhoods. ICE previously bought access to phone, water, electricity, and other utility data before that data selling stopped. This practice of buying data rather than sourcing it with a court order is sometimes referred to as the data broker loophole. “The Consumer Financial Protection Bureau was on the verge of closing this loophole before Trump killed the agency and blocked that new rule from going into effect. The next administration should close that loophole for good,” Senator Wyden’s statement added. DHS acknowledged a request for comment more than a week ago but ultimately did not provide a statement.
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 25/05/2026
It turns out that CBS Studios financed the Colbert episode of “Only in Monroe” and owns the copyright. The “volunteers” were paid after all. Variety magazine has the story: CBS Suspends Takedown Notices on Bootleg YouTube Uploads of Stephen Colbert's 'Only in Monroe' Public Access Show After […]
mastodon.social
Original post on mastodon.social
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 17/05/2026
The City of Pasadena approved an organization to hire 600 goats to eat vegetation on the steep slopes of the Arroyo Seco and reduce wildfire risk. The pilot project was 100 acres (about 50 hectares). The goats finished their work much faster than expected. See this article in PasadenaNow […]
mastodon.social
Original post on mastodon.social
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Abraham Samma 🔭 🔬 :iterm2_logo: @abesamma.hachyderm.io.ap.brid.gy · 07/04/2026
This. This is the money shot of the whole mission. #artemis #nasa
An incredible shot of the moon blocking the sun from Artemis II as they flew by the moon. You can see the sun's Corona surrounding the moon's dark form like a pale white cloud of light with stars and presumably planets in the background. The moon's form is lit dimly by reflected light from the Earth.
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Chad :mstdn: @chad.mstdn.ca.ap.brid.gy · 05/04/2026
It's no secret that I've been struggling, and my therapist said I need to find things to keep me busy, so I created the @cdnspace Artemis II dashboard. I reverse-engineered the Unity Engine powering the NASA AROW visualization and found an absolute treasure trove of data to display. Little did […]
mstdn.ca
Original post on mstdn.ca
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 05/04/2026
@sundogplanets Linda Geddes at The Guardian has a well-researched article about how Reflect Orbital’s space mirrors can damage the environment www.theguardian.com/science/2026/ap…
theguardian.com
Satellite mirror plans could disrupt sleep and ecosystems worldwide, scientists say
Letters to US agency raise concerns over tech firm’s plans to use reflective satellites and expand numbers in low Earth orbit
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Mark Ingalls 🎃👻🧙‍♂️ @ingalls.mstdn.ca.ap.brid.gy · 02/04/2026
Good morning #SFBA! If you slept through last night's #earthquake, still feel out the USGS survey. "I slept through it" is still a useful data point. earthquake.usgs.gov/earthquakes/eve… #California #SanFrancisco
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Prof. Sam Lawler @sundogplanets.mastodon.social.ap.brid.gy · 14/03/2026
I saw southern auroras last night!!!! Rakiura! Holy cow that was AMAZING (View from a bit south of Arthur's Pass, New Zealand)
A nighttime view looking to the south, with the Milky Way stretching across the left portion of the photo, and the two Magellanic clouds visible as little puffs of cloudy stars, with blazingly bright pink and orange aurora pillars low on the horizon.  The auroras are also visible reflected in a lake that's just barely visible in the starlight, with silhouetted mountains on each side of the image.
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Dan Froomkin/Press Watch/Heads Up News @froomkin.bsky.social · 09/03/2026
This WaPo article describes many signs of Trump’s dangerous derangement and unfitness, but in failing to state the obvious conclusion, it sanewashes his conduct. It uses “unique” as a pathetic euphemism for “chaotic and irrational“. It’s worse than nothing. www.washingtonpost.com/politics/202...
washingtonpost.com
A wartime presidency defined by Trump’s unique political style
President Trump is recasting the role of wartime leader in his image, breaking from generations of practice as he attacks his domestic enemies and revels in memes.
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 03/03/2026
I woke up to see the lunar eclipse, but we have clouds. Darn marine layer!
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Michele Bannister @astrokiwi.bsky.social · 27/02/2026
"Rocket launches already contribute to climate change and ozone depletion. Scaling them up to deploy a million aircraft-sized satellites would push upper-atmosphere heating and ozone loss far beyond previous estimates, with the steady burn-up of dead satellites compounding the impacts." 🧪🛰️🚀
theconversation.com
A new space race could turn our atmosphere into a ‘crematorium for satellites’
Planned ‘megaconstellations’ of satellites could cause unforeseen harm to the ozone layer and climate systems. Global regulation is needed before it’s too late.
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 23/02/2026
The NASA JPL robotics team found a way to use the commercial CPU (Snapdragon) in the Ingenuity helicopter base station on the side of the Perseverance rover to do advanced image processing on the imagery captured by the rover and determine the rover location on Mars accurately. Since it was not […]
mastodon.social
Original post on mastodon.social
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Tom Gauld @tomgauld.bsky.social · 14/02/2026
A Valentine’s Day cartoon for @newscientist.com
Title: A Valentine’s Day experiment 

In an effort to test the efficacy of cupids arrows of desire.

A placebo group is shot with regular arrows.

Their injuries range from moderate to sever.

Unexpectedly, romances struck up in hospital and lawyers’ waiting rooms create a "romance ratio" similar to that of magic arrows.

However, once the cost of compensation claims is factored in, it is decided to discontinue.
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 01/02/2026
This 4.5-minute video gives a great explanation about the new use of AI assistance to improve efficiency of planning drives by the NASA Perseverance rover on Mars. The Mars Guy YouTube channel has excellent informative videos every week. #MarsGuy #NASA #JPL #Mars […]
mastodon.social
Original post on mastodon.social
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Mastodon @mastodon.mastodon.social.ap.brid.gy · 31/01/2026
We are excited to share that we are beginning work on a new onboarding experiment for #Mastodon: Default Server Recommendations. Our intent for this experiment is to recommend the closest server geographically that is in the correct language during the sign-up flow. We will be running this […]
mastodon.social
Original post on mastodon.social
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 28/01/2026
@sundogplanets Maybe you saw this study of Amazon Leo satellite brightness. phys.org/news/2026-01-amazon-leo-sa…
phys.org
Amazon Leo satellites exceed brightness limits, study finds
Seeing a satellite zip across the night sky can be a fascinating sight. However, what may be spectacular for people on the ground is becoming a major problem for astronomers. A new study published on the arXiv preprint server has found that satellites from Amazon's mega Leo constellation (originally known as Project Kuiper) are bright enough to disrupt astronomical research.
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 23/01/2026
Sample data from the NASA-ISRO SAR (NISAR) L-band imaging radar is now available from the NASA EarthData system. These are preliminary products with some caveats but include an interferogram for the November 2025 volcanic eruption in Ethiopia […]
mastodon.social
Original post on mastodon.social
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Prof. Sam Lawler @sundogplanets.mastodon.social.ap.brid.gy · 23/01/2026
Oh hey look I'm complaining about satellites in the New York Times again www.nytimes.com/2026/01/22/science/… (does this unlocked link the author sent me work?)
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Prof. Sam Lawler @sundogplanets.mastodon.social.ap.brid.gy · 20/01/2026
You know who did a lot of programming on the Naval Ordnance Research Computer and was brilliant and good at orbits? Gladys West! This archived Air Force bio says she was involved in the Pluto study […]
mastodon.social
Original post on mastodon.social
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Pax Ahimsa Gethen @funcrunch.me.dm.ap.brid.gy · 11/01/2026
I'm feeling the #NobelPeacePrize should be revoked or possibly just cancelled in the case where any winner offers to share it with #Trump www.theguardian.com/world/2026/jan/… #USPol #Machado
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Vee @veroniqueb99.mastodon.social.ap.brid.gy · 03/01/2026
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Claire McNab @2legged.mastodon.ie.ap.brid.gy · 23/12/2025
The distance between #Dublin and #London is 464 miles, #asthecrowflies. But as #GretaThunberg learnt today, it's about a million miles in politics. In Dublin, #PresidentConnolly regards the #genocide in #Gaza as a horror. But in London, the #CityOfLondonPolice […] [Original post on mastodon.ie]
Under the heading "Greta Thunberg's Tale of Cities",  there are two photographs. 

To the left, dated "Dublin, 17th December", is a photo of Greta Thunberg with President Catherine Connolly. Underneath is he caption "Welcomed at Áras an Uachtaráin by President Connolly, to support Greta's opposition to the genocide in Gaza".

To the right, dated "London, 23 December", is a photo of Greta Thunbtg being led away by police officers.  The caption reads "Arrested by City of London Police under the Terrorism Act for opposing the genocide in Gaza".
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Prof. Sam Lawler @sundogplanets.mastodon.social.ap.brid.gy · 02/12/2025
"Even Carrington would be impressed" 😬 spaceweather.com/archive.php?view=1… Hopefully we just get "someone should check on our satellites" levels of auroras and not "A bunch of open questions in solar-terrestrial physics are about to be answered"
What it means if you see an aurora by latitude.

Polar: Normal
High latitude: Cool and exciting
mid latitude: Someone should go check on our satellites
equatorial: A bunch of open questions in solar-terrestrial physics are about to be answered

Image from https://xkcd.com/2233
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Daniel Swain @weatherwest.bsky.social · 02/12/2025
UC ANR helps Californians in all corners of the state adapt to climate change--and it's a team I'm personally proud to be part of. For #GivingTuesday, if you can, give to support this work: give.ucanr.edu
give.ucanr.edu
University of California - Agriculture and Natural Resources
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Nonilex @nonilex.masto.ai.ap.brid.gy · 12/11/2025
#GiftArticle #JeffreyEpstein Alleged in Emails That #Trump Knew of His Conduct #House #Democrats on Wednesday released emails in which #Epstein wrote that Trump had “spent hours at my house” with one of Epstein’s victims, among other messages that suggested that the convicted sex offender […]
masto.ai
Original post on masto.ai
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Kevin Leecaster @greenfire.mstdn.social.ap.brid.gy · 11/11/2025
I've said it more than once, but I don't think that enough people appreciate it yet. Transitions are difficult. That was why I was begging for us to start decades ago before we'd added so much more greenhouse gases to our polluted atmosphere.
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Katharine Hayhoe @katharinehayhoe.com · 31/10/2025
In 2018, Meta decided “clean energy” and “climate change” were politically sensitive topics, and demanded that I - a climate scientist - register as a political org to post and boost posts on them. I refused, and my page has been shadow banned since then. For 7 years. Until this week, that is 😳
The screen grab showing that the views of my Facebook page have increased by over 2000% in the last three days
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Prof. Sam Lawler @sundogplanets.mastodon.social.ap.brid.gy · 19/10/2025
Helloooo auroras! (With a long exposure and a fancy camera, it just looks like a faint glow naked eye) Also helloooo Comet Lemon! (If you zoom way in on just the right spot) And fuck you, Starlinks, ruining the sky!
Faint green auroras behind the silhouette of a barn.  There are also LOTS of satellite streaks of varying brightness and orientation, and if you zoom in in just the right spot, there's a cute little comet!
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Popehat @kenwhite.bsky.social · 18/10/2025
CATS YES, KINGS NO
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 17/10/2025
The Vantor company (formerly Maxar) used one of their Worldview satellites to capture a picture of the NASA-ISRO SAR (NISAR) satellite in orbit. The large radar reflector (12 meters or 38 feet wide) has a mesh surface that appears gold and the solar panels on […] [Original post on mastodon.social]
Satellite in the black of space. The main satellite has a large cubic shape, with solar panels extending out on two sides. There is a long boom extending up from the satellite holding the 12-meter wide circular radar reflector structure that has a smooth surface mesh.
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Steve Herman @w7voa.journa.host.ap.brid.gy · 15/10/2025
DoD today confiscated the badges of the Pentagon reporters from virtually every major media organization in America. - Pentagon Press Association
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Brian Vastag @brianvastag.mas.to.ap.brid.gy · 11/10/2025
You love to see it: Social media is shrinking. People spend less time with Meta products than they used to. 67% of the public has an unfavorable view of Zuckerberg. KEEP GOING www.honest-broker.com/p/social-medi…
honest-broker.com
Social Media Is Now Shrinking
And their latest move is a "jump the shark" moment that will accelerate the decline
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Heidi Li Feldman @heidilifeldman.mastodon.social.ap.brid.gy · 04/10/2025
What Trump-Noem ICE is doing in # Chicago is morally and legally wrong. www.cnn.com/2025/10/03/us/chicago-a… 1/
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 25/09/2025
The first NISAR (NASA-ISRO SAR) L-band radar images have now been released! These are early images acquired before NISAR reached the final science orbit with radar test modes so only a few locations were imaged. The mountains of Mount Desert Island in Maine, USA, are beautiful. I first visited […]
mastodon.social
Original post on mastodon.social
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Raphael Mimoun רפאל מימון @raph.social.coop.ap.brid.gy · 22/09/2025
Excerpts from the statement of Bassem Tamimi, Palestinian activist from the West Bank village of Nabi Saleh, to an Israeli military judge in 2011: Your Honor, I hold this speech out of belief in peace, justice, freedom, the right to live in dignity, and out of respect for free thought in the […]
social.coop
Original post on social.coop
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Dan Gillmor @dangillmor.mastodon.social.ap.brid.gy · 19/09/2025
Please read Josh Marshall's take on the Trump regime's escalating attacks on freedom of speech -- Kimmel's removal only the latest but probably most extreme example. talkingpointsmemo.com/edblog/a-few-… The most […]
mastodon.social
Original post on mastodon.social
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Karen Attiah @karenattiah.bsky.social · 18/09/2025
I gave my heart and soul to that place. Built entire sections for journalists pushed out of their home countries. When the writer I hired, Jamal Khashoggi was murdered by Saudi Arabia, they paraded me around as a symbol for press freedom. I put MY LIFE on the line to defend journalism and WaPo.
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