Vanishing Act
The Moon prepares to cover up the star Aldebaran in this January 19 image from the Smithsonian. The two will…
Starry Arms
This map shows the major spiral arms of the Milky Way galaxy. Our solar system is at top center, a…
Plutonian Lava Lamp
An enhanced-color view of Pluto shows a region where warm material bubbles up from below, forming new crust. Scientists with…
Through the Smog
A patchwork of images from the Cassini spacecraft shows the surface of Titan, the largest moon of Saturn. An orange…
Water World
The giant planet Jupiter looms above its moon Europa in this artist's concept. Europa's surface is made mainly of frozen…
Biggest of the Big
A brilliant cluster in the Large Magellanic Cloud, a companion galaxy to the Milky Way, is home to many young,…
Biggest of the Big
One of the most massive black holes yet discovered resides at the heart of NGC 1600, the large, bright galaxy…
Planetary Geometry
Waves in the upper atmosphere sculpt a giant storm at Saturn's north pole into a hexagonal shape. This true-color view…
Long-Distance Mail
The United States Postal Service will debut this panel of stamps at a conference that begins May 28. The stamps…
Close Neighbor
Mars puts on its best face in this Hubble Space Telescope image, snapped on May 12, when Mars was just…