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Astronomers first spotted this moon in 2013 by combing through images of Neptune that were taken by NASA’s Hubble Space Telescope. The discoverers have now dubbed the world Hippocamp, the name of a horse-like sea monster from Greek mythology. The title fits in nicely with the theme of Neptune’s 13 other moons, all of which are named after Greek gods of bodies of water.
Hippocamp is incredibly tiny for a moon: it’s just 21 miles across, or about the size of a major metropolitan city. Its minuscule size made this rock super difficult to study from Earth. But with the help of further observations from Hubble, astronomers were able to track this little moon over the last few years, detailing their work in a new paper in Nature. That allowed them to distinguish just how big it is as well as the exact path it takes around Neptune.
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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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Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: CircuitPython 2025 Wraps, Focus on Using Python, Open Source and More! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi
EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey