What to read this week: The Laws of Thought by Tom Griffiths

Dwight Ellefsen/FPG/Archive The Laws of ThoughtTom Griffiths, William Collins (UK) Macmillan (US) FOR nearly 70 years, cognitive researchers have been fighting a civil war. On one side is computationalism, which argues intelligence is best explained by rules, symbols and logic that can be expressed in equations. On the other is connectionism, where intelligence emerges from…

Read More

The Kuiper Belt is packed with weird peanut-shaped objects. Astronomers think they know why

February 19, 2026 3 min read Add Us On GoogleAdd SciAm Our solar system is surrounded by weird peanut-shaped objects. Astronomers think they know why A study published today helps explain how “planetesimals”—the building blocks of planets—came to be By Joseph Howlett edited by Lee Billings The planetesimal Arrokoth, as pictured by the New Horizons…

Read More

Ultra-processed foods could be making you age faster

Ice cream and other confections are ultra-processed foods Martin Parr/Magnum Photos A few months ago, I tried my hand, unsuccessfully, at coining a neologism. I was writing a feature about how obesity, stress, heatwaves and pollution accelerate ageing, or senescence, in which I proposed that our modern world should be called the “senesogenic environment”. (I…

Read More

Trump’s order to release evidence for aliens obscures the scientific search for extraterrestrial life

On Thursday U.S. president Donald Trump announced on his social media platform Truth Social that he would direct the Department of Defense and other federal agencies to “begin the process of identifying and releasing Government files related to alien and extraterrestrial life, unidentified aerial phenomena (UAP), and unidentified flying objects (UFOs), and any and all…

Read More

Fish-based pet food may expose cats and dogs to forever chemicals

Some pet foods contain potentially harmful PFAS chemicals Cris Cantón/Getty Images Many pet foods – especially those based on fish – have levels of so-called forever chemicals that exceed European health agency thresholds for humans. The findings point to an urgent need for increased monitoring of contaminants in pet products and a better understanding of…

Read More
Back To Top