Cosmologists largely believe that when our universe was extremely young — less than a trillionth of a trillionth of a second old — it went absolutely nuts. In the tiniest fraction of a moment of time (again, involving trillionths upon trillionths of a second), the universe got really, really big.
How big? It’s hard to say exactly, because this concept is highly hypothetical, but “way bigger than you might think” should suffice. Most models of this event, called inflation, call for a universe that is at least 10^52 times bigger than the observable volume of the cosmos. Since that observable patch is already 90 billion light-years across, that means that the true extent of our universe is so big, it’s nearly incomprehensible.
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.