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Dallas Shooting, Solar Wind, and the Sorority Rush Bonanza

One person was killed and two others injured after a gunman opened fire at a Dallas ICE facility. This and more in today's digest.

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Good morning. It's Thursday, Sept. 25, and we're covering a deadly shooting in Dallas, a mission into the cosmic winds, and much more. First time reading? Join over 4.5 million readers. Sign up here.

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 Need To Know 

 

ICE Shooting in Dallas

One person was killed and two others were left in critical condition after a gunman opened fire at a Dallas Immigration and Customs Enforcement facility yesterday morning. Officials described the shooting as a targeted attack and said the assailant died from a self-inflicted gunshot wound before police reached him. 

The shooter was identified as 29-year-old Joshua Jahn. While a motive has not been publicly revealed, reports suggest an unused bullet with the words "ANTI-ICE" written in marker was found at the scene. The gunman opened fire from the rooftop of an adjacent building around 6:30 am ET local time, as detainees were being transferred into the facility. All three victims were detainees—no ICE officers were wounded—and were said to be sitting inside a transport van when the shooting began.    

The attack appears to be the latest in an increasingly frequent string of politically or ideologically motivated violence, and comes two weeks after conservative activist Charlie Kirk was killed. See recent examples here

 

Space Weather Probes

A SpaceX rocket successfully deployed a trio of scientific spacecraft yesterday, each with the goal of studying various aspects of the solar wind—the stream of energetic charged particles emanating from the sun.

The solar wind is created in the sun’s outer atmosphere (see overview), where charged particles reach extreme temperatures before ejecting into space. These particles also create a vast magnetic bubble, called the heliosphere, that deflects otherwise hazardous radiation coming into the solar system. The largest mission, run by NASA, will study both the solar wind and the heliosphere, while a second will observe how Earth’s exosphere interacts with solar storms.

The third, managed by NOAA, will provide real-time monitoring of such storms after its existing probe went offline in July. Solar storms—intense flare-ups of the charged particle streams—can severely impact telecommunications networks.

Learn more about space weather here.

 
 

Rebel Leader to Diplomat

Syria's President Ahmed al-Sharaa became the first Syrian leader since 1967 to address world leaders at the UN General Assembly in New York yesterday. He previously led the Islamist rebel coalition Hayat Tahrir al-Sham, which toppled the decadeslong dictatorship of his predecessor, Bashar al-Assad, in December.

Al-Sharaa's presidency ended nearly 14 years of civil war that displaced an estimated 14 million people—more than half of the country's prewar population—and killed around 1 million. In his remarks, al-Sharaa urged an end to sanctions, called for international investment to aid Syria’s recovery, and criticized Israeli policy, suggesting a return to disengagement arrangements along their shared border. 

His speech came against the backdrop of continued unrest in Syria, including internal clashes as well as Israeli strikes targeting military positions and weapons shipments near the border. Israel says it intends to prevent hostile forces from gaining a foothold, while diplomatic talks between the nations continue.

In partnership with Timeline

New Science Could Reverse Energy Decline

 

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 In The Know 

 

Sports, Entertainment, & Culture

Sean "Diddy" Combs accused in lawsuit of sexual assault and battery by a former personal stylist; Combs is due to be sentenced next week in a separate criminal case (More

Claudia Cardinale, Italian film star known for starring roles in "Pink Panther" and "Once Upon a Time in the West," dies at age 87 (More

YouTube to allow reinstatement of content creators previously banned by the streaming platform for spreading misinformation about COVID-19 and the 2020 election (More

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Shield Your Gutters This Season

Clogged gutters can lead to costly repairs, especially when leaves and debris pile up in the fall.

 

GutterSafe is a durable, weather-resistant solution designed to keep your gutters clear and your home protected year-round. Made with high-quality materials and engineered for quick, no-hassle installation, it’s the easiest way to prevent water damage before it starts.

 

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Science & Technology

Seven-year study shows people at risk for rheumatoid arthritis experience immune system changes years before feeling symptoms; finding could enable more targeted monitoring and earlier intervention (More) | What's arthritis? (1440 Topics

Mathematical modeling reveals spirals in human umbilical cords facilitate an oxygen and heat exchange that keeps babies cool before birth; research suggests abnormal cord structures contribute to pregnancy complications (More

Researchers develop gene therapy treatment that slowed the progression of Huntington's disease—a fatal, progressive brain disorder—by 75% in a clinical trial; biotech company uniQure aims to offer the therapy in the US next year (More

Business & Markets

> US stock markets close down (S&P 500 -0.3%, Dow -0.4%, Nasdaq -0.3%) as investors eye release of Federal Reserve's preferred inflation gauge on Friday (More

US new-home sales rise 20.5% month over month in August, an unexpected increase and the fastest pace since 2022 (More

Lithium Americas shares close up 96% after the Trump administration proposes an equity stake of up to 10% in the Canadian miner (More

Real estate, art, jewels, oh my: Tomorrow's Business & Finance newsletter explores the world of alternative investments. Subscribe here to receive!

Politics & World Affairs

Widow of victim in January helicopter-plane collision near Reagan National Airport files first federal lawsuit against American Airlines, its regional partner, the US Army, and the FAA; at least 60 more lawsuits expected (More

Chinese President Xi Jinping pledges to reduce greenhouse gas emissions 7% to 10% by 2035, marking the first time the world's largest emitter has set a firm reduction target (More

> Denmark's prime minister publicly apologizes to Greenlandic Indigenous girls and women who were given invasive contraception against their will by Danish health authorities in the 1960s and 1970s (More

In-Depth

 The Science of Reading

Kite and Key | Staff. Mississippi’s rise in childhood literacy shows how adopting phonics-based instruction propelled the state from the bottom of national reading scores to the top, with similar gains now spreading to other states. (More

 English Football Takeover

ESPN | Mark Ogden. American investors now control more than half of Premier League clubs, raising questions about the growing influence of US ownership in English football. (More

In partnership with Timeline

Want to Age Well? You Need Muscle.

 

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 Etcetera 

 

Sororities across the country are rushing to go viral

 

Ranking the coolest neighborhoods in the world.

 

Captain America's 1940 debut sparked outrage ... for punching Hitler.

 

Self-pollinating thymeleaf wins microscopic video awards.

 

AI can pass the hardest level of CFA exam in minutes.

 

... but study finds AI "workslop" is destroying productivity.

 

A fork's journey from scandalous utensil to everyday item.

 

Khaki is Sherwin-Williams' 2026 color of the year.

 

Clickbait: You are literally glowing.

 

Historybook: US Congress passes the Bill of Rights (1789); "Superman" actor Christopher Reeve born (1952); The Little Rock Nine integrate Central High School in Little Rock, Arkansas (1957); Catherine Zeta-Jones born (1969); Golfer Arnold Palmer dies (2016). 

"I think a hero is an ordinary individual who finds the strength to persevere and endure in spite of overwhelming obstacles."

- Christopher Reeve

Why 1440? The printing press was invented around the year 1440, spreading knowledge to the masses and changing the course of history. More facts: In every day, there are 1,440 minutes. We’re here to make each one count.

 

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*Disclosure: 500mg Mitopure® have been shown to (1) induce gene expression related to mitochondria function and metabolism and (2) increase the strength of the hamstring leg muscle in measures of knee extension and flexion after 4 months in overweight 40-65 year olds.

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