Astronomy Picture of the Day is like that super interesting book that you always forget you own, but when—on occasion—you find it under the coffee table, it never fails to entrance no matter which page you open to.

                          Clouds and Stars over Cotopaxi Volcano in Ecuador
                        Credit & Copyright: Stéphane Guisard (Los Cielos de America), TWAN

Explanation: What’s happening above the Cotopaxi volcano in Ecuador? Quite a bit, from the looks of the above one-night, time-lapse movie, taken earlier this month. The majestic volcano is first seen through breaks in fast moving clouds as the movie begins. Soon the clouds have dissipated and a sky filled with stars seems to rotate about the snow-peaked volcano’s peak. The band of our Milky Way Galaxy, the dark Coal Sack nebula, and the Southern Cross can all be seen overhead. Satellites streak by from several directions. Soon thin clouds roll by and seem to make the brightest stars sparkle. On the volcano (starting at about 1:13 of the movie), the lights of climbers flash. Near the end of the movie, a bright airplane passes over the peak with a residual trail seen drifting away.

From the NASA video channel on YouTube, an incredible satellite video of an exploding volcano.

“A fortuitous orbit of the International Space Station allowed the astronauts this striking view of Sarychev Volcano (Kuril Islands, northeast of Japan) in an early stage of eruption on June 12, 2009. Sarychev Peak is one of the most active volcanoes in the Kuril Island chain, and it is located on the northwestern end of Matua Island.”

Booooooom.