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.
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
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.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.