NASA To Host News Conference Previewing US Spacewalks 100, 101

NASA will brief reporters Oct. 20 on two spacewalks planned to install the final ISS roll-out solar arrays and complete a power upgrade.

Price Your Resale Finds With Facebook Marketplace Comparisons

An IdeaNavigator AI product concept proposes local price bands and title suggestions for Marketplace sellers, with a 15-seller test to gauge demand.

Antarctic Sea Ice Grows To Its 2026 Maximum

Antarctic sea ice likely peaked on September 14 at 17.59 million square kilometers, the third-lowest annual maximum in the satellite record.

The Lightbulb Computer

A September 2026 design project shows a projector-and-camera device for putting digital information into shared spaces, but says a consumer version is not ready.

NASA Announces Bold Science Initiatives For America’s Golden Age Summit

NASA announced a metascience initiative and 10 Genesis Mission Fellowships alongside the White House’s Science: A Golden Age Summit.

Can 722 Proofs Give OpenAI’s AI Mathematics A Clearer Direction?

OpenAI published 722 manuscripts from an unnamed model. Their claims are not independently verified, and the work’s mathematical value remains uncertain.

A Better Connection Between Small-Town Properties And Local Businesses

A proposed pilot would connect vacant small-town storefronts with business owners, linking listings to local development offices and grant programs.

Open Thread 454

Astral Codex Ten’s Open Thread 454 shares meet-up, translated-document and book-review resources, an AI-safety outreach notice and a publishing update.

Suspected Second-generation Planet Solves NASA Hubble Cold Case

A reanalysis of Hubble data found niobium signatures in a white dwarf system, pointing to a possible planet formed from material ejected by its star.

Independent Retail, Wholesale Access, And The Small-Order Marketplace

A proposed wholesale marketplace would let independent shops test products in five-unit assortments, then track which trials become standard orders.