It remains way past time to shut down all cryptocurrency scams. So it is good to read this from my local government. www.twincities.com/2025/11/19/s...

Today on the #arXiv: @davidkipping.bsky.social et al. 2026, "A JWST Transit of a Jupiter Analog: II. A Search for Exomoons" - arxiv.org/abs/2511.15317 Suggesting another candidate exomoon, with a plan for more observations to determine if there is indeed something there.

In a new phase 3 trial, people randomly assigned to receive a flu shot made with modified mRNA were 34.5% less likely to be diagnosed with an influenza-like illness than people given a standard flu shot made with inactivated virus. We need to stop the anti-science attacks against mRNA vaccines!

Immigration advocates say a St. Paul father and his brother were arrested in Tuesday’s federal raid at Bro-Tex Inc.

Since Jim Lovell died recently, I will go with "Lost Moon".

More crime. #ImpeachTrump And it remains way past time to shut down all cryptocurrency scams. "Saudi developer wants to sell Trump hotel tokens to US retail investors" www.reuters.com/world/middle...

The rejection of science generally and public health specifically and the complete devaluation of expertise are now articles of faith for the American right.

Here are the #I/ATLAS releases from varied NASA/ESA missions. Having worked with such telescope & spacecraft data for 40 years, my perspective is: no surprises. It's a comet; its differences from Solar System comets are intriguing but every comet is different! science.nasa.gov/solar-system...

Here's our captioned release: www.uahirise.org/hipod/ESP_08...

Every so often, I remember how strange it is that measuring distortions in spacetime passing through Earth has become routine.

Yet again, USA: Require that Congress do its job, #ImpeachRFKJr, and remove him & those with him from HHS. Before they kill even more people than they already have.

How did water form on Mercury? #PlanetSci 🧪 🔭

Excellent public health messaging from New York City!! Be the happy peace sign waving emoji instead of the sick and sniffling emoji. How can you do that? Wear a mask! Ideally a respirator like an N95. It’ll help keep you and your community safe.

Read this interview with @peterthorne.bsky.social to understand how dire the situation is with respect to US science funding. The US has played an outsized role in Earth observations and global coordination, and even if other nations decide to step in, it would take at least a decade to recover.

I attended a talk by a scientist at a Chinese University and realized that all the background climate data that she used came from the US (CO₂ Keeling Curve, global temperature time series, etc.). Although China funds a lot of research, the destruction of US science will affect science globally.

Remember that lovely aurora last week? Well...um...this is what Euclid saw... 😱 🧵

youtu.be/zz3eFAqcsmA 🔭 AAS Journal Author Series: Matthew Hopkins on 2025ApJ...990L..30H Matthew Hopkins (University of Oxford, University of Canterbury) chats about his article on 3I/ATLAS within the context of predicting the properties of the interstellar object population.

I have long said people don't be hatin Chief Justice John Roberts as much as they should be hatin Chief Justice John Roberts

An amazing art. I would like more public & publicly supported anti-nuclear weapons and pro-peace art.

St. Paul, MN. ICE abducted someone here yesterday.

How we know that dark matter does not interact like visible matter does.

As always, everyone: Work for the extensive efforts that _ must _ be made to address #ClimateChange . And yet again, USA: #ImpeachTrump and remove him & those with him from government. Give Congress no choice otherwise. www.theguardian.com/environment/...

Every single day ICE agents are threatening people and terrorizing communities. We’ve seen ICE pepper spray babies, disappear US citizens, slam distraught mothers and fathers to the ground—now they’re terrorizing St. Paul. ICE is out of control and should be abolished.

3 years ago, NASA crashed the DART spacecraft into an asteroid at 22,000 kilometers per hour. The event changed the asteroid's orbit and tilt & sent it tumbling. A nearby cubesat captured these remarkable images of the asteroid immediately after the impact. 🧪🔭 aasnova.org/2025/11/03/s...

🛰️🔭

Joining my DFL House colleagues with care and concern for our community and our neighbors.

Ahhhhhhh I'm giving a lecture tonight for the Amateur Astronomers Association tonight and I forgot to advertise it!! Sorry y'all 😭 but it'll be recorded: aaa.org/event/lectur...

Because of this incident, the Immigrant Law Center of Minnesota has opened its Detention Line today (11/18) until 5:00. If individuals have a family member who has been detained, they are available to help at 651.641.1011. Additional resources can be found at stpaul.gov/immigration-resources.

Einstein presented "Explanation of the Perihelion Motion of Mercury from the General Theory of Relativity" #OTD in 1915. He used his nearly-complete theory of general relativity to explain the 43 arc-second per century anomalous precession of Mercury. 🧪 ⚛️ 🔭

This is my seasonal reminder to myself to move the first aid kit so that the naloxone and a few other things do not freeze.

#OPAG - Impacts of US Govt Shutdown on Hubble Space Telescope operations

"Who likes interferometry??" #ThingsActualScientistsSay

#OPAG - #Dragonfly flight path to launch

I read people here in the Twin Cities promoting dangerous disinformation about tear gas and pepper spray. Please learn from relevant experts instead.

#OPAG - Timeine: ESA JUICE Mission, Did perform a quick observation of #3IAtlas

Yet again, USA: Require that Congress ensure that the executive branch operates as Congress has ordered and in no other way. And #ImpeachMcMahon and #ImpeachTrump.

#PPOD: Saturn is seen here through the lens of NASA's Cassini spacecraft during a ring plane crossing in February 2005. The picture reveals the razor-thin ring plane in blue, atmospheric bands in gold, and moons Dione and Enceladus as slight "bumps" in the rings. 🧪 🔭

In @minnesotareformer.com, our co-lead PI and Hennepin Healthcare Chief of Pediatrics Dr. Diana Cutts, MD explains why letting the enhanced premium tax credits of the Affordable Care Act expire is disastrous for child and family health.

I gave a talk about small objects in the solar system to a 2nd grade class today. I got asked "how fast can an asteroid go?" I had already answered that question for @spacepod.bsky.social : www.listentospacepod.com/episodes/202... And it was also a good time to mention 3I/ATLAS.

#OPAG - #3I/ATLAS Observations from Europa Clipper, Executed a calibration for the UVS Instrument.

Federal agents caused multiple injuries and deployed tear gas multiple times. The agencies that had a confirmed presence are: FBI, ICE, DEA, and HSI. Federal agents were seen with “police vests” but we have confirmation that SPPD and the Ramsey County Sheriff’s Office were not involved or present.

Update as of 10:55 AM: Federal agents have left the Territorial/Hampden location. Mayor Carter and I are on site. We have heard reports of several individuals that have been taken by the federal government. At least one person was arrested.

#AbolishICE. And thanks go to the Saint Paul city government officials who personally went over to prevent further escalation.

Breaking: Federal agents spotted at the Bro-Tex, Inc. building in St. Paul (800 N. Hamden St near University Ave). Protesters are onsite. FBI and DEA agents in "Special Response Team" camo gear are present.

Ahead of the upcoming ACIP meeting on the child immunization schedule, it’s important to remember immunizations are about more than individual decisions — immunizations affect communities, including babies too young to be vaccinated

Keep watching the skies Baker, longtime observatory director, educated generations with his astronomy texts. His debut, Astronomy: An Introduction, appeared in 1930 and even included Pluto’s discovery. By John Mark Ockerbloom everybodyslibraries.com/2025/11/17/k... #PublicDomainDayCountdown

It's hard to describe how disorienting it is to see this many students absent. My only mental reference point is the weeks leading up to school getting canceled due to COVID-19, when students were starting to stay home due to illness or out of precaution. CBP/ICE is a plague.