What Happens to the Solar System When Our Sun is a White Dwarf? #SpaceSaturday
When our sun is no longer able to sustain its fusion, gravity will crush the core down to a ball of “degenerate” matter about the size of the Earth. It will be what’s called a white dwarf. But what happens to the planets that surround the sun? That’s what is explored in a new paper, via Phys.Org:
Astronomers can’t see the future, but they can observe existing white dwarfs and look for clues to the fate of their planets.
…
G238-44 is about 86 light-years away and has a hydrogen-dominated atmosphere polluted with other elements, including carbon, neon, oxygen, sulfur, and iron. Twenty-four years of data from Keck shows a stable and continuous accretion of these materials from a circumstellar reservoir onto the white dwarf. The researchers also say they discovered “an anomalous abundance pattern and evidence for the presence of metallic iron.” Could the iron and the other elements come from a single parent body? Or are two bodies needed to explain the presence of all these materials?
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
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 7:30pm ET! To join, head over to YouTube and check out the show’s live chat and our Discord!
Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: MicroPython v1.24.0 is here, a Halloween Wrap-up and Much More! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi
EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey