Top Stories

NASA Artemis II Lifts Off: Four Astronauts Begin 10-Day Lunar Mission

425 points · nasa.gov

The first crewed mission beyond low Earth orbit since Apollo 17 in 1972 has launched. Four astronauts are now on a 10-day trip around the Moon aboard the Orion spacecraft. This is a genuinely historic moment in space exploration — a half-century gap in human deep space travel is finally closing. The HN community is glued to the live broadcast.

EmDash: Cloudflare’s Spiritual Successor to WordPress

420 points · cloudflare.com

Cloudflare launched EmDash in beta — an open-source, serverless CMS built on Astro and TypeScript that directly targets WordPress’s biggest weakness: plugin security. Instead of giving plugins direct database access, EmDash sandboxes each one with explicit capability declarations. The platform runs on Cloudflare Workers with scale-to-zero economics, native passkey auth, and AI-native tooling. A bold play given WordPress powers roughly 40% of the web.

Claude Wrote a Full FreeBSD Remote Kernel RCE with Root Shell

236 points · github.com

A detailed write-up of CVE-2026-4747 — a critical stack buffer overflow in FreeBSD’s kernel GSS-API implementation. The exploit chains 15 rounds of crafted NFS packets using ROP gadgets to deliver shellcode without panicking the kernel. What makes this especially notable: Claude reportedly generated the working exploit. It affects FreeBSD 13.5 through 15.0 and is unauthenticated over NFS. The implications for AI in offensive security research are hard to overstate.

Is BGP Safe Yet?

230 points · isbgpsafeyet.com

A renewed spotlight on one of the internet’s most fundamental vulnerabilities. BGP lacks built-in security, meaning malicious actors can hijack routes without verification. RPKI adoption is growing — major providers like Verizon, Comcast, and Google have deployed it — but global coverage remains patchy. This tracker shows who’s safe and who isn’t.

The OpenAI Graveyard: Deals and Products That Haven’t Happened

208 points · forbes.com

Forbes cataloged the growing list of OpenAI projects, partnerships, and product announcements that never materialized. With the company freshly valued at $852B, this accountability journalism is cutting through the hype cycle. The HN crowd, characteristically skeptical of vapor, pushed this hard.

Show HN: Git Bayesect — Bayesian Bisection for Non-Deterministic Bugs

163 points · github.com

Traditional git bisect assumes a bug is deterministic — a commit either broke things or it didn’t. Git bayesect applies Bayesian inference to handle probabilistic scenarios: flaky tests, race conditions, statistical performance regressions. It learns failure rates as you provide observations and uses entropy minimization to pick the most informative commit to test next. Elegant and practical.

DRAM Pricing Is Killing the Hobbyist SBC Market

148 points · jeffgeerling.com

Jeff Geerling digs into how surging DRAM prices are squeezing the single-board computer market. Boards that once hit sweet spots for hobbyists and educators are getting priced out of reach. For a community that thrives on accessible hardware, this is a concerning trend.

Intuiting Pratt Parsing

138 points · louis.co.nz

A well-crafted tutorial on Pratt parsing — a technique for parsing expressions with operator precedence that’s elegant but notoriously hard to grok from academic papers alone. This walkthrough builds intuition step by step. The kind of deep programming craft content that HN consistently rewards.

Artemis II Lifts Off: Four Astronauts Begin Lunar Mission

132 points · theguardian.com

The Guardian’s live coverage of the Artemis II launch, complementing NASA’s official broadcast. Multiple front-page entries for this story underscore just how significant it is — the first humans heading to lunar orbit in over fifty years.

SpaceX Files to Go Public

129 points · nytimes.com

SpaceX has reportedly filed for an IPO. Given the company’s dominance in launch services and Starlink’s growing subscriber base, this would be one of the most closely watched public offerings in tech history. HN discussion is spirited, touching on valuation, governance, and Musk’s involvement.