YC Startup News
Startups that come through Y Combinator often go on to shape entire markets. This section tracks news about YC-backed companies, from demo day launches and seed rounds to later funding, acquisitions, and the products these founders are building.
Expect launch announcements from current batch companies, follow-on rounds as alumni scale, product releases in categories from developer tools to AI agents and fintech, and the occasional exit or shutdown that closes a company's arc. Growth milestones and pivots fill in the stories between.
Watching these companies over time shows how early ideas evolve into real businesses, which is valuable study material for anyone building or backing startups. It also surfaces useful new products early, often before the wider market has heard of them.

The bird eye was pushed to an evolutionary extreme
2026-05-16New research reveals how the avian retina, one of the most energetically expensive tissues in the animal kingdom, functions without utilizing the typical energy advantages of oxygen. Scientists have finally uncovered the biological mechanisms behind this remarkable evolutionary extreme in bird vision.

Greek Alphabet Cards
2026-05-16A parent has designed a new set of educational flashcards to help children learn the Greek alphabet through clever visual associations. The project features everyday objects morphed into the shapes of their corresponding letters, offering an engaging tool for early language acquisition.

Nearly 50 Years Later, WKRP in Cincinnati Becomes a Real Radio Station
2026-05-16Nearly five decades after the classic television sitcom debuted, the fictional WKRP in Cincinnati has officially become a real radio station. A local Cincinnati FM station formerly known as The Oasis acquired the WKRP call letters from a nonprofit broadcaster in North Carolina. This acquisition allows the iconic call letters to finally broadcast in the show's namesake city.

Naturally Occurring Quasicrystals
2026-05-16Quasicrystals are rare structures similar to regular crystals but featuring non-repeating patterns. They are incredibly uncommon and require extreme, violent events to form in nature. These unique materials are typically created by high-speed asteroid collisions, lightning strikes in sand dunes, or atomic explosions.

The main thing about P2P meth is that there's so much of it (2021)
2026-05-16The illicit drug market has experienced a massive surge in methamphetamine production since 2009 due to the widespread adoption of the phenylacetone manufacturing method. Experts are currently investigating whether the distinct chemical composition of this P2P meth is directly linked to rising rates of schizophrenia and other severe mental health crises.
Futhark by example (2020)
2026-05-16The 2020 tutorial Futhark by example introduces developers to Futhark, a high-performance and purely functional array programming language. It demonstrates how the language enables efficient data-parallel execution across both GPU and CPU architectures through practical coding samples.
Orthrus-Qwen3: up to 7.8×tokens/forward on Qwen3, identical output distribution
2026-05-16A new dual-view diffusion decoding method called Orthrus-Qwen3 has been introduced to achieve fast, lossless inference for the Qwen3 large language model. By generating up to 7.8 tokens per forward pass, the technique significantly accelerates processing speeds compared to standard methods. Crucially, it maintains an identical output distribution to the baseline model, ensuring no drop in accuracy.
Ploopy Bean: a trackpoint for every computer
2026-05-16The newly announced Ploopy Bean external TrackPoint has received mixed feedback from enthusiasts, with critics arguing that relocating the pointing stick away from the keyboard defeats its core ergonomic purpose. Users also expressed disappointment over the device's lack of authentic features like comfortable soft rim caps and integrated scrolling buttons. However, supporters note that the highly customizable design could still serve as a valuable accessibility tool for individuals with physical disabilities who cannot use standard keyboards.
Show HN: Rocksky – Music scrobbling and discovery on the AT Protocol
2026-05-16Rocksky is a new music scrobbling and discovery platform built on the AT Protocol, despite being described in its launch as a next-generation social coding platform. Showcased on Hacker News, the application primarily allows users to track their listening habits and explore new music.

Fecal transplants for autism deliver success in clinical trials (2019)
2026-05-16Clinical trials by Arizona State University demonstrate that fecal transplants significantly improve symptoms in individuals with autism. These findings highlight the potential of gut bacteria therapy as a novel and promising treatment for managing the condition.
MCP Hello Page
2026-05-16The article highlights a practical use of HTTP content negotiation to serve a helpful HTML guide when users browse a Model Context Protocol server endpoint directly. Community discussions also explore broader challenges with the MCP specification regarding authentication and gateways, though developers remain optimistic about the protocol's future for standardizing AI agent tools.

Kioxia and Dell cram 10 PB into slim 2RU server
2026-05-16Kioxia and Dell have developed a high-density 2RU server capable of storing 10 petabytes of data. This massive storage capacity sparked online debates about its potential use in orbital data centers and satellite networks like Starlink. However, readers quickly dismissed the feasibility of deploying such hardware in space, citing severe challenges with radiation hardening, extreme power consumption, and heat dissipation.
Additive Blending on the Nintendo 64
2026-05-16Commenters discuss a technical deep dive into why the Nintendo 64 lacked the vibrant visual effects seen on the original PlayStation, attributing it to hardware limitations with additive blending. The discussion draws parallels between this graphical constraint and audio mixing, explaining how preventing value overflow without dynamic compression forces lower overall brightness. Ultimately, fans debate whether the N64's muted explosions suffer from a lack of realistic light emission or simply deliver a more satisfying, stylized game feel.
3D Gaussian Splatting in a Weekend
2026-05-163D Gaussian splatting is a machine learning technique that reconstructs 3D scenes from 2D image datasets by replacing traditional triangle primitives with unique Gaussian splats. The algorithm optimizes the model by iteratively rendering the scene from various angles and comparing it to ground truth photographs, offering a highly efficient method for rapidly generating realistic environments.
PART Telescopes – Bringing radio astronomy within reach of rural schools
2026-05-16The PART Telescopes project aims to bring radio astronomy within reach of rural schools. This initiative is driven by OpenRockets, a registered global nonprofit organization. The organization is operated entirely by teenagers who are dedicated to advancing science worldwide.

DeepSeek-V4-Flash means LLM steering is interesting again
2026-05-16DeepSeek-V4-Flash has renewed interest in large language model steering by offering a well-documented method to dynamically remove refusal behaviors directly during inference. This runtime approach is praised for preserving the model's core capabilities, allowing developers to modify model behavior on demand without permanently altering the underlying model weights.

Erlang/OTP 29.0
2026-05-16The Erlang development team has officially released version 29.0 of the Erlang programming language and its associated Open Telecom Platform. This major update introduces new features and enhancements aimed at improving system performance and the overall developer experience. It continues to reinforce the platform's core strengths in concurrency and fault tolerance for building scalable distributed applications.
SQL patterns I use to catch transaction fraud
2026-05-16This guide details practical SQL query patterns used to detect transaction fraud, sharing exact queries to identify red flags like rapid transaction velocity and impossible geographical distances. It also highlights the use of advanced window functions to analyze merchant clusters and track unusual off-hours buying behavior.
Gaining control of every projector and camera on campus
2026-05-16After a student caused a campus-wide network outage by enumerating DNS records to discover and gain control of every projector and camera on campus, university IT issued a surprisingly polite warning. This lenient response to the network exploitation sparked a debate among readers regarding the appropriate disciplinary measures for students who disrupt academic infrastructure.

Where to buy a non-Apple, non-Google smartphone
2026-05-16As Apple and Google impose increasingly strict limitations on their mobile ecosystems, users are turning to alternative smartphones to escape traditional walled gardens. This guide highlights the best non-Apple and non-Google phones currently available for consumers looking to make the switch.