Mysterious Changing feature on Titan
What is that changing object in a cold hydrocarbon sea of Titan? Radar images from the robotic Cassini […]
Astronomy
Auroral Corona over Norway
Higher than the highest mountain lies the realm of the aurora. Auroras rarely reach below 60 kilometers, and […]
The Helix Nebula from Blanco and Hubble
How did a star create the Helix nebula? The shapes of planetary nebula like the Helix are important […]
Eclipse at Moonrise
As the Moon rose and the Sun set on October 8, a lunar eclipse was in progress seen […]
Moons at Opposition
From the early hours of October 8, over the Santa Cruz Mountains near Los Gatos, California, the totally […]
Eclipse at Moonset
The Pacific Ocean and Chilean coast lie below this sea of clouds. Seen through the subtle colors of […]
NGC 6823: Cloud Sculpting Star Cluster
Star cluster NGC 6823 is slowly turning gas clouds into stars. The center of the open cluster, visible […]
From the Temple of the Sun to the Temple of ...
What connects the Sun to the Moon? Many answers have been given throughout history, but in the case […]
Space Station Detector Finds Unexplained Positron Excess
Where did all these high energy positrons come from? The Alpha Magnetic Spectrometer (AMS-02) onboard the International Space […]
Mars, Antares, Moon, and Saturn
Mars, Antares, Moon, and Saturn are the brightest celestial beacons in this serene sky. The Sun’s golden light […]