Where are stars made? NASA's Spitzer spies a hot spot

The nebula known as W51 is one of the most active star-forming regions in the Milky Way galaxy. First identified in 1958 by radio telescopes, it makes a rich cosmic tapestry in this image from NASA's recently retired Spitzer ...

Photos may improve understanding of volcanic processes

The shape of volcanoes and their craters provide critical information on their formation and eruptive history. Techniques applied to photographs—photogrammetry—show promise and utility in correlating shape change to volcanic ...

How cities create their own clouds

Cities are more likely to be persistently covered by clouds than rural areas thanks to unique atmospheric conditions they produce, a new study has shown.

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