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Roman Telescope Saves Fuel, Doubles Mission

Contemplate the events that might end a space mission, and you might picture something dramatic: detonation on the pad, a dead guidance system, or micrometeoroids shattering delicate solar panels. More …read more

Geothermal Cooling For New York’s Subways

You might think that if you dug some tunnels down into the ground where you could be out of the sunshine, that you might find them to be relatively cool …read more

Places To Visit: Landschaftspark Duisburg-Nord

There are many benefits to spending time in the park, but perhaps few of them have a Hackaday angle. There’s a park in Germany you might want to make an …read more

The FPGA Chronicles: Exploring The Tang Nano 20K

FPGAs used to be mysterious, expensive devices, but these days you can buy surprisingly capable boards for very little money. Some years ago, I did an FPGA Bootcamp over on …read more

Hackaday Links: September 27, 2026

It isn’t quite hailing frequencies open, but researchers from Harvard claim they’ve picked up a radio signal directly from a nearby exoplanet. Before you get too excited, planets in our …read more

From The Blog

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  • Own The OSD Chip In Your Cheap Composite Monitor

    No comments

    By Jenny List | October 3, 2026

    [Ogrinz Labs] has built a Robbie the Robot suit, which is super-cool, but has a huge flaw. When inside the suit, he’s too tall to do what the original Robbie …read more

  • That’s No Moon… That’s An Exoplanet!

    No comments

    By Al Williams | October 3, 2026

    It wasn’t that long ago that a science teacher would have told students that there was no evidence of planets around other star systems. Even more recently, they might have …read more

  • Is This The Smallest Internet Radio?

    2 Comments

    By Jenny List | October 2, 2026

    Internet radios have been a thing in some form for the last quarter century, and the advent of cheap networked microcontrollers has made them easier than ever to build. But …read more

  • 2026 Retrocomputing Challenge: Lunar Lander On The PDP-1

    2 Comments

    By Tyler August | October 2, 2026

    A lot of the retrocomputing world is focused on the 1980s, and for good reason– the home computer revolution was in full swing in that decade, and there is a …read more

  • Electronic Busy Board Is Fun For Kids and Hackers

    4 Comments

    By Tom Nardi | October 2, 2026

    While you may not be familiar with the term “busy board”, you’ve almost certainly seen one. It’s the sort of toy with a bunch of buttons, switches, and of course …read more

  • 2026 Retrocomputing Challenge: A Homebrew Computer In Only Three ICs

    16 Comments

    By Tyler August | October 2, 2026

    Homebrew computers don’t have to be retrocomputers, but [Just4Fun]’s all-through-hole, 68008-based “68k-MBC” certainly qualifies, so it is a worthy entry in our ongoing contest. While there are both “full” and …read more

  • Hackaday Podcast Episode 389: Spinning Lightfield Displays, And Jenny Visits A Blast Furnace

    1 Comment

    By Jenny List | October 2, 2026

    Another all-European podcast for you this week, as Elliot Williams is joined by Jenny List for an evening looking at the past week in Hackaday. And this week there is …read more

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  • Vacuum Drying And Making Stuff Hot In A Vacuum

    19 Comments
  • Roman Telescope Saves Fuel, Doubles Mission

    14 Comments
  • Geothermal Cooling For New York’s Subways

    23 Comments
  • The FPGA Chronicles: Exploring The Tang Nano 20K

    36 Comments
  • After Decades, NASA May Finally Replace Mars Relays

    19 Comments
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Our Columns

  • Hackaday Podcast Episode 389: Spinning Lightfield Displays, And Jenny Visits A Blast Furnace

    1 Comment
  • This Week In Security: ShinyHunters Won’t Dox The FBI, Pentagon Data Stolen, And OBS Vulnerable

    5 Comments
  • Places To Visit: Landschaftspark Duisburg-Nord

    18 Comments
  • Hackaday Links: September 27, 2026

    7 Comments
  • The Least Annoying Of All Evils

    64 Comments
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Featured Projects

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PowerPD — ESP32 USB-C PD/PPS Bench Power Supply

PowerPD — ESP32 USB-C PD/PPS Bench Power Supply

by Raushan Kumar
LightInk

LightInk

by Daniel Ansorregui

Trending Projects

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PSU-EXT

PSU-EXT

by Dzmitry Dydyshka
Bass Reflex vs Sealed vs Horn – Same Speaker

Bass Reflex vs Sealed vs Horn – Same Speaker

by mircemk
YUMO Roulette — A "Floating" Spinning Desk Gadget

YUMO Roulette — A "Floating" Spinning Desk Gadget

by YUMO.BUILDS
IronEar - Sound recognition sensor Meshtastic/HA

IronEar - Sound recognition sensor Meshtastic/HA

by ststephen510
Project Ceylon: What If the Amiga Never Died?

Project Ceylon: What If the Amiga Never Died?

by Mike
Samegame (VIC Dual)

Samegame (VIC Dual)

by Louis Paul

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If you missed it

  • Vacuum Drying And Making Stuff Hot In A Vacuum

    19 Comments
  • Roman Telescope Saves Fuel, Doubles Mission

    14 Comments
  • Geothermal Cooling For New York’s Subways

    23 Comments
  • The FPGA Chronicles: Exploring The Tang Nano 20K

    36 Comments
  • After Decades, NASA May Finally Replace Mars Relays

    19 Comments
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Categories

Our Columns

  • Hackaday Podcast Episode 389: Spinning Lightfield Displays, And Jenny Visits A Blast Furnace

    1 Comment
  • This Week In Security: ShinyHunters Won’t Dox The FBI, Pentagon Data Stolen, And OBS Vulnerable

    5 Comments
  • Places To Visit: Landschaftspark Duisburg-Nord

    18 Comments
  • Hackaday Links: September 27, 2026

    7 Comments
  • The Least Annoying Of All Evils

    64 Comments
More from this category

Recent comments

  • Ewald on Electronic Busy Board Is Fun For Kids and Hackers
  • Joseph Eoff on A Mechanical Radio, Sort Of
  • Jan-Willem on Teardown Of A USB-C Cable With Integrated LCD
  • Spencer on 2026 Retrocomputing Challenge: A Homebrew Computer In Only Three ICs
  • Dani on 2026 Retrocomputing Challenge: A Homebrew Computer In Only Three ICs
  • Foldi-One on Teardown Of A USB-C Cable With Integrated LCD
  • Foldi-One on Teardown Of A USB-C Cable With Integrated LCD
  • Dude on Vacuum Drying And Making Stuff Hot In A Vacuum
  • Dude on Geothermal Cooling For New York’s Subways
  • Daniel on Using Vibration To Make Stuff Stick Contact-Free To Ceilings

Now on Hackaday.io

  • Steve Welch liked Replica of the PDP-1: PiDP-1.
  • Shizz828 liked SharkDeck v2.
  • Shizz828 liked SmallOLED - Retro Arcade Clocks & Live PC Stats.
  • Legionlabs has updated the log for Selectric-256.
  • mircemk has updated the project titled Bass Reflex vs Sealed vs Horn – Same Speaker.
  • YUMO.BUILDS has updated the project titled YUMO Roulette — A "Floating" Spinning Desk Gadget.
  • mirkoschultheiss liked DeepDeck: an OpenSource Macropad like no other!.
  • tomdehavas wrote a comment on Microcode-less TTL CPU.
  • tomdehavas wrote a reply on Microcode-less TTL CPU.
  • ststephen510 has added a new log for IronEar - Sound recognition sensor Meshtastic/HA.
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