Palomar 12
Palomar 12 was not born here. The stars of the globular cluster, first identified in the Palomar Sky […]
Astronomy
Dark Craters and Bright Spots Revealed on Asteroid Ceres
What are those bright spots on asteroid Ceres? As the robotic spacecraft Dawn approaches the largest asteroid in […]
Fibrils Flower on the Sun
When does the Sun look like a flower? In a specific color of red light emitted by hydrogen, […]
M106: A Spiral Galaxy with a Strange Center
What’s happening at the center of spiral galaxy M106? A swirling disk of stars and gas, M106‘s appearance […]
Two Hours Before Neptune
Two hours before closest approach to Neptune in 1989, the Voyager 2 robot spacecraft snapped this picture. Clearly […]
Solar System Portrait
On another Valentine’s Day 25 years ago, cruising four billion miles from the Sun, the Voyager 1 spacecraft […]
Aurora on Ice
Not from a snowglobe, this expansive fisheye view of ice and sky was captured on February 1, from […]
Exploring the Antennae
Some 60 million light-years away in the southerly constellation Corvus, two large galaxies are colliding. The stars in […]
M100: A Grand Design Spiral Galaxy
Majestic on a truly cosmic scale, M100 is appropriately known as a grand design spiral galaxy. It is […]
An Extremely Long Filament on the Sun
Yesterday, the Sun exhibited one of the longest filaments ever recorded. It may still be there today. Visible […]