If there’s anyone out there on some exoplanet, they very likely can see Earth. We are detectable by over 2000 star systems, according to astronomers. Here’s more from Astronomy Now:
Lisa Kaltenegger, professor of astronomy and director of Cornell University’s Carl Sagan Institute, and Jackie Faherty, an astrophysicist at the American Museum of Natural History, scoured stellar motion and position data collected by the European Space Agency’s Gaia spacecraft to identify stars that are, have been or will be roughly aligned with the plane of our solar system, allowing transits to be seen…. They found 1,715 star systems within 326 light years that could have spotted Earth over the past 5,000 years using the transit method and another 319 that will move into the proper orientation over the next 5,000 years.
8-6-2021 (August 6, 2021) is the Snakiest day of the year and it’s also this year’s CircuitPython Day! The day highlights all things CircuitPython and Python on Hardware. See you there!
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.