Plants grown in potting mix under the same environmental conditions served as “controls,” and the simulant regolith (soil) is based to a large extent on volcanic rock from the Mojave Desert. MSS, which tends to be denser, is available online and comes from NASA’s chemical analysis of Martian samples. However, the actual regolith on Mars contains perchlorates that are dangerous to humans. So, once on Mars, this hazardous chemical will have to be removed before the actual soil is used. Also, the sunlight on Mars is weaker, which affects growing conditions. So, the Villanova students took all the right steps to replicate Martian greenhouse conditions, and accounted for as many variables as possible—all with the goal of answering the question: Can plants be grown on Mars in Martian soil under reduced ambient light?
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.