The week in pictures: January 26 – February 1, 2013
In the past seven days, Venus Express discovered that our sister planet’s ionosphere balloons out like a comet’s tail, the Herschel Space Observatory captured cool new images of Andromeda Galaxy, and Cassini watched a Saturn storm choke on its own tail, and more.
NASA joins ESA’s "dark universe" mission
The mission will study the evolution of our universe and the dark matter and dark energy that influence its evolution in ways that still are poorly understood. Learn more »