If you are one of those people who visualize things physically better than in the abstract, then Regex Marble Run by [bottomless] might be for you. You enter a test …read more (https://hackaday.com/2026/10/20/visualize-regular-expressions-with-marbles/)

Super Mario Galaxy Now Runs on the GBA
https://hackaday.com/2026/10/20/super-mario-galaxy-now-runs-on-the-gba/

Joining the ranks of fresh backported Nintendo games is Super Mario Galaxy for the Nintendo Game Boy Advance (GBA), courtesy of [Tobias Friedly], AKA [Tobi]. In a recent video he announces …read more (https://hackaday.com/2026/10/20/super-mario-galaxy-now-runs-on-the-gba/)

Spreading Life to Bleached Coral
https://hackaday.com/2026/10/20/spreading-life-to-bleached-coral/

Coral bleaching is a major problem for ocean ecosystems as the ocean gets warmer. Researchers at Stanford have found a new method for regenerating bleached corals. Scientists working on coral …read more (https://hackaday.com/2026/10/20/spreading-life-to-bleached-coral/)

NASA’s Lunar Grounding Challenge is a Real Buzz
https://hackaday.com/2026/10/20/nasas-lunar-grounding-challenge-is-a-real-buzz/

One could make a joke about how an astronaut walking on the lunar surface is rather akin to a cat walking on the carpet in the living room, but out …read more (https://hackaday.com/2026/10/20/nasas-lunar-grounding-challenge-is-a-real-buzz/)

Going Whole-Hog on a First Satellite Ground Station
https://hackaday.com/2026/10/20/going-whole-hog-on-a-first-satellite-ground-station/

When most radio enthusiasts start trying to pick up signals from satellites, they might put together a quick-and-dirty Yagi antenna and try to catch a repeater as is passes overhead, …read more (https://hackaday.com/2026/10/20/going-whole-hog-on-a-first-satellite-ground-station/)

Lazarus and the Free Pascal Compiler Gain Dynamic Package Support
https://hackaday.com/2026/10/20/lazarus-and-the-free-pascal-compiler-gain-dynamic-package-support/

If you have developed in Pascal or Delphi in the past decades, you’re probably familiar with the Lazarus IDE that provides an interface to the Free Pascal Compiler (FPC), much …read more (https://hackaday.com/2026/10/20/lazarus-and-the-free-pascal-compiler-gain-dynamic-package-support/)

Using Ultrasound and Microbubbles to Make Tiny Devices
https://hackaday.com/2026/10/20/using-ultrasound-and-microbubbles-to-make-tiny-devices/

Although we generally do not look at bubbles in fluids as more than a curiosity – if not an outright annoyance – in certain contexts they can be very useful. …read more (https://hackaday.com/2026/10/20/using-ultrasound-and-microbubbles-to-make-tiny-devices/)