GPT-6 Comes to Free ChatGPT Today. Here’s What Changes, and What to Watch For

OpenAI is rolling out GPT-6 to every ChatGPT user, along with “Intelligent UI,” which answers with charts, buttons and mini tools. Here is what is new, what OpenAI has not said, and how to use it wisely.

Google’s Medical AI Chatbot Got Its First Real-Clinic Test. Here’s How It Did

In a Lancet study at a Boston clinic, Google’s AMIE chatbot interviewed 100 patients before urgent care visits and listed the confirmed diagnosis among its top picks 90% of the time. A doctor watched every chat.

Apple Sets an Oct. 13 “Welcome Home” Launch. Here’s What to Expect, Plus What Could Come Oct. 27

Apple confirmed an Oct. 13 launch teased with “Welcome home,” with a smart home hub, HomePod mini and Apple TV expected. Reports point to touchscreen MacBook Pros and an OLED iPad mini around Oct. 27.

Common Sense Media Rates ChatGPT for Teens an “Unacceptable Risk.” OpenAI Disputes the Findings

In more than 4,000 test prompts, Common Sense Media found ChatGPT for Teens’ parent alerts, age checks and study mode often failed. OpenAI says the testing doesn’t reflect how its safeguards work.

Coffee Drinkers Have a Different Gut Mix, a Small Study Finds. Decaf May Have Perks of Its Own

A small Irish study found regular coffee drinkers had distinct gut bacteria and metabolites, and that decaf and regular coffee may affect mood and memory differently.

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Amazon’s New Alexa Tablets Run Android With Google Play, Starting at $230

Amazon’s new Alexa Tablet 8, 11 and 12 Pro run Android with the Google Play Store and Alexa+, start at $229.99 and ship Oct. 14.

October’s Night Sky: Orionid Meteors, a Bright Saturn and the Full Moon

Halley’s Comet leftovers light up the Orionid meteor shower on October 21–22, while Saturn shines all night. Here’s what to look for and when.

Anne Carson, the Genre-Bending Canadian Poet and Classicist, Wins the Nobel Prize in Literature

The Swedish Academy honored the 76-year-old Canadian writer “for her bold and inventive oeuvre.” Here is who she is, and which of her books to read first.

Chemistry Nobel Goes to Two Scientists Who Showed How Molecules Can Amplify Their Own “Handedness”

Henri B. Kagan and Kenso Soai won the 2026 Nobel Prize in Chemistry for discoveries about how mirror-image molecules form, with clues to why life is one-handed.

Nobel Prize in Medicine Goes to the Scientists Who Taught Brain Cells to Respond to Light

Karl Deisseroth, Peter Hegemann and Georg Nagel share the 2026 Nobel Prize in Physiology or Medicine for optogenetics, a technique that uses light to switch specific nerve cells on and off.

Physics Nobel Goes to the Wisconsin Scientist Who Built a Neutrino Telescope Inside the South Pole Ice

Francis Halzen of the University of Wisconsin–Madison wins the 2026 Nobel Prize in Physics for leading IceCube, the cubic-kilometer detector buried in Antarctic ice that found high-energy neutrinos from deep space.

The Meteor That Hit Oklahoma Was About 100 Million Years Younger Than Scientists Thought

New dating of tiny zircon crystals puts the buried Ames impact crater at about 370 million years old — close in time to one of Earth’s big mass extinctions.

A Forgotten 30-Year Forest Experiment Found Thinned Stands Stored as Much Carbon as Untouched Ones

Researchers revisited a logging trial in Australia’s mountain ash forests that sat neglected for decades. Heavily thinned stands grew bigger trees and stored as much or more carbon in their wood than unharvested areas.

NASA Picks a Mission to Find Out Whether a Hole on the Moon Leads to a Giant Cave

A new NASA-selected project will use radar, seismic sensors and a gravity meter to see whether the Marius Hills Pit opens into an underground lava tube — a possible shelter for future astronauts.

How You Hold Your Arm Can Skew a Blood Pressure Reading by Nearly 7 Points

In a Johns Hopkins study, resting the arm on the lap or letting it hang raised blood pressure readings compared with a desk. Here’s how to measure at home the right way.