Where Do Cosmic Rays Come From? #SpaceSaturday

Conventional wisdom tells us that cosmic rays can transform a scientist, his lady friend, a pilot, and the lady friend’s hot-headed brother into a super-powered family that, when written and drawn with genre-redefining realism and eye to emotional detail, can create an entirely new way of telling super-hero stories. But conventional wisdom also tells us that cosmic rays are generated by powerful supernova blasts. One of those two statements may well be untrue. And it isn’t the one about the Fantastic Four. Here’s more from Astronomy Now:

As it turns out, supernovae, which do indeed generate high-energy gamma rays, are not powerful enough to explain the petaelectronvolt (PeV) energies observed with the most extreme cosmic ray events. Instead of supernovae, new research suggests, star clusters featuring closely packed type O and type B stars are responsible, acting as so-called PeVatron accelerators.

“Cosmic rays below PeV energy are believed to come from our galaxy, but the question is what are the accelerators that can produce them?” said team leader Petra Huentemeyer, professor of physics at Michigan Technological University.

See more!


As 2022 starts, let’s take some time to share our goals for CircuitPython in 2022. Just like past years (full summary 2019, 2020, and 2021), we’d like everyone in the CircuitPython community to contribute by posting their thoughts to some public place on the Internet. Here are a few ways to post: a video on YouTub, a post on the CircuitPython forum, a blog post on your site, a series of Tweets, a Gist on GitHub. We want to hear from you. When you post, please add #CircuitPython2022 and email circuitpython2022@adafruit.com to let us know about your post so we can blog it up here.

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

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CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


Maker Business — Pololu’s account of the chip shortage

Wearables — Stay frosty

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Python for Microcontrollers — Python on Microcontrollers Newsletter: CircuitPython 2022 Survey, Python #1 in 2021 and more! #Python #CircuitPython @micropython @ThePSF

Adafruit IoT Monthly — 2021 in Recap!

Microsoft MakeCode — MakeCode Thank You!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — New Products 1/12/22 Feat. Adafruit QT Py ESP32-S2 WiFi Dev Board with uFL Antenna Port – STEMMA QT!

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