The Chandra X-ray Observatory has captured intriguing images of the vast Tycho supernova remnant, first noted in 1572 when the Danish astronomer Tycho Brahe reported a bright “new” star in the constellation Cassiopeia. The new star was actually a Type 1a supernova, the sudden explosion of a white dwarf that had pulled in enough material from a companion to trigger a runaway nuclear detonation, blowing the star’s outer layers into the surrounding space. The result is an expanding cloud of gas that glows brightly in X-rays due to shock waves that heat the material to millions of degrees.
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.