The Carina Nebula glows hot pink above Chile's Chiliques volcano in a recent picture.
The nebula sits about 7,500 light-years away in the constellation of the same name. The nebula gets its red and purple hues from hot hydrogen gas interacting with ultraviolet radiation from the nebula's massive young stars.
The nebula is also home to one of the brightest stars in the Milky Way galaxy, Eta Carinae, a tumultuous ball of gas roughly a hundred times more massive than our sun.
The plasma trail of the Progress 42P disposable, unmanned supply vehicle is seen in an October 29 picture by an International Space Station astronaut.
Several times a year robotic spacecraft take food, water, fuel, medical supplies, and more to the space station.
After the vehicles are filled with trash from the station, they're sent back into space—"essentially using Earth's atmosphere as an incinerator for both the spent spacecraft and the refuse," according to NASA.
The picture, taken when the space station was over the southern Pacific Ocean, shows light from the rising sun illuminating the curve of Earth.
The thin strip of green above the curve is airglow, emissions of light from atoms and molecules in the upper atmosphere when they are excited by ultraviolet radiation.
The physical features of the moon are seen in the first version of an unprecedented topographical map created with images from the Lunar Renaissance Orbiter Camera (LROC).
The "amazing" map shows the varying elevations of the entire moon's surface, with reds, oranges, and whites revealing the highest features, and purples and greens indicating the lowest, according to the LROC website.
"Visualizations like these allow scientists to view the surface from very different perspectives, providing a powerful tool for interpreting the geologic processes that have shaped the moon," the website said.