The origins of the faint glow, which emits 3.5 kiloelectronvolts (keV) of energy, are especially intriguing because the signal matches key predictions about the nature of dark matter, a mysterious substance from which most of the universe is made. For years, scientists have debated whether the glow was long-sought evidence of a hypothetical particle that makes up dark matter. A clear answer to that question could finally unravel the true nature of dark matter, which is the “holy grail of astroparticle physics at the moment,” said Benjamin Safdi, an astrophysicist at the University of Michigan, in a call.
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.