Check out these rad backgrounds I helped my buddy Powelus with!
NASA unveils greatest views of the aurorae ever, from space in HD
“When the free electrons finally find the ions they bind to, they drop down in energy, creating an incredible display of colorful possibilities. Of all of them, it’s the oxygen (mostly, with the strong emission line at 558 nanometers) and the nitrogen (secondary, with the smaller line at a slightly higher wavelength) that create the familiar, spectacular green color we most commonly associate with aurorae, but blues and reds — often at higher altitudes — are sometimes possible, too, with contributions from all three of the major atmospheric elements and their combinations.”
The northern (aurora borealis) and southern (aurora australis) lights are caused by a combination of three phenomena on our world, that make our aurorae unique among all worlds in our solar system:
- Outbursts from the Sun that can go in any direction,
- Our magnetic field, that funnels charged particles into circles around the poles,
- And our atmospheric composition, that causes the colors and the displays we see.
Put all of these together and add in a 4k camera aboard the ISS, and you’ve got an outstanding recipe for the greatest aurora video ever composed. Here’s the in-depth science behind it, too.

Lake Eyre - South Australia
Source: https://imgur.com/WAvc2VG
Just some of the bacteria that is found on your beef and chicken if not cooked properly. 😷

Model of vesicle adhesion, rupture and island dynamics during the formation of a supported lipid bilayer (from work by Atzberger et al) featured on the cover of the journal Soft Matter (I love their rubric: “Where physics meets chemistry meets biology for fundamental soft matter research.”)
Photo Credit: Peter Allen
Source: At the Interface of Math and Science (The UCSB Current)
Remember when Snape made fun of the size of a teenage girls teeth and she subsequently chose to change them so they were permanently smaller? What a hero.
Remember when Snape abused a thirteen year-old student (whose parents hand been tortured to the point that they didn’t even recognize him) so much that he was more afraid of him than he was of anything else in the world? Bravest man I’ve ever known.