A weird, unidentified X-ray signal radiating out of nearby galaxies has perplexed scientists ever since it was first detected in 2014. Now, a promising study into its origins has come up empty-handed, meaning that whatever is causing the faint signature is currently unknown to us and more mysterious than ever.
Ultimately, the new results leave scientists with two mysteries to solve: the origins of this eerie glow and the true identity of dark matter. Safdi and his colleagues are optimistic that novel techniques and next-generation observatories will be able to constrain both of these tantalizing questions.
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.
