Lift off of Space Shuttle Atlantis
Originally uploaded by FirehawkNS
A Lesson in Counting Stars
A Lesson in Counting Stars
Originally uploaded by NASAJPL
These two photographs were made by combining data from NASA's Galaxy Evolution Explorer spacecraft and the Cerro Tololo Inter-American Observatory in Chile. By combining the data, astronomers were able to learn that not all galaxies make stars of different sizes in the same quantities, as was previously assumed. In other words, the proportion of small to big stars can differ from galaxy to galaxy.
Trailing Enceladus
Trailing Enceladus
Originally uploaded by NASAJPL
The Cassini spacecraft looks toward the varied surface of the trailing hemisphere of Saturn's moon Enceladus.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on June 25, 2009. The view was acquired at a distance of approximately 594,000 kilometers (369,000 miles) from Enceladus and at a Sun-Enceladus-spacecraft, or phase, angle of 66 degrees.
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