Dragon Aurora over Norway

What’s that in the sky? An aurora. A large coronal hole opened last month, a few days before this image was taken, throwing a cloud of fast moving electrons, protons, and ions toward the Earth. Some of this cloud impacted our Earth’s magnetosphere and resulted in spectacular auroras being seen at high northern latitudes. Featured … Continue reading Dragon Aurora over Norway

NGC 3324 in Carina

This bright cosmic cloud was sculpted by stellar winds and radiation from the hot young stars of open cluster NGC 3324. With dust clouds in silhouette against its glowing atomic gas, the pocket-shaped star-forming region actually spans about 35 light-years. It lies some 7,500 light-years away toward the nebula rich southern constellation Carina. A composite … Continue reading NGC 3324 in Carina

Moons, Rings, Shadows, Clouds: Saturn (Cassini)

While cruising around Saturn, be on the lookout for picturesque juxtapositions of moons, rings, and shadows. One quite picturesque arrangement occurred in 2005 and was captured by the then Saturn-orbiting Cassini spacecraft. In the featured image, moons Tethys and Mimas are visible on either side of Saturn’s thin rings, which are seen nearly edge-on. Across … Continue reading Moons, Rings, Shadows, Clouds: Saturn (Cassini)

I Brought You the Moon

I love you so much that I brought you the Moon. Please take it before this tree becomes more interested. Also the Moon is heavier than I thought. And I foolishly picked it up by the hot side by mistake. But it is for you and, well, the others reading this APOD. Promise to keep … Continue reading I Brought You the Moon