Snowy Mont Blanc is near the center of this atmospheric night skyscape. But high, thin clouds fogged the skies at the photographer’s location, looking south toward Europe’s highest peak from […]

You’ve probably seen a circle around the Sun before. More common than rainbows, ice halos, like a 22 degree circular halo for example, can be easy to spot, especially if […]

Bright enough for binocular viewing Comet 21P / Giacobini-Zinner stands out, even in this deep telephoto mosaic of the star cluster and nebula rich constellation Auriga the Charioteer. On the […]

Our Moon’s appearance changes nightly. As the Moon orbits the Earth, the half illuminated by the Sun first becomes increasingly visible, then decreasingly visible. The featured video animates images taken […]

You have to take a long hike to see the Troll’s Tongue — ten hours over rocky terrain. And in this case, it took three trips to capture the landform […]

If you could stand on Mars — what might you see? If you were NASA’s Curiosity rover, just last month you would have seen the view from Vera Rubin Ridge, […]

This is the mess that is left when a star explodes. The Crab Nebula, the result of a supernova seen in 1054 AD, is filled with mysterious filaments. The filaments […]

In full view, the amazing six-sided jet stream known as Saturn’s north polar hexagon is shown in this colorful Cassini image. Extending to 70 degrees north latitude, the false-color video […]

Delicate in appearance, these filaments of shocked, glowing gas, are draped across planet Earth’s sky toward the constellation of Cygnus. They form the western part of the Veil Nebula. The […]

What do spiral galaxies look like sideways? Featured is a sharp telescopic view of a magnificent edge-on spiral galaxy NGC 3628, a puffy galactic disk divided by dark dust lanes. […]