In the late 1940s, the US Naval Research Laboratory used a few German-built V2 rockets to study cosmic rays from above Earth’s atmosphere. To do this, a nitrogen-powered cloud chamber was ...

However, much closer to home, you can actually build your own cloud chamber and see cosmic ray trails yourself for about $100! Here’s instructions. What do we know about cosmic rays, and what remains ...

The discovery of Eos, the closest known molecular cloud to Earth and one of the largest structures in the night sky, hints at ...

Cosmic rays may offer an out-of-this-world answer ... "But that process would require a very strong electric field in the cloud, and that has never been measured." In fact, Shao added, the ...

By Katrina Miller Stars and planets are born inside swirling clouds of cosmic gas and dust that are brimming with hydrogen and other molecular ingredients. On Monday, astronomers revealed the ...

LARGE variations in the intensity of cosmic rays have been observed during the period of the recent great sunspot group, January 29–February 12, 1946. According to information kindly given by ...

Want to see cosmic rays? You might need a lot of expensive exotic gear. Nah. [The ActionLab] shows how a cup of coffee or cocoa can show you cosmic rays — or something — with just the right ...

For decades, astronomers were certain that half of the ordinary matter in the universe — protons and neutrons, the building ...

In the past, dense clouds might have so squeezed the heliosphere that even Earth sat outside the shield, exposed to cosmic rays that may have helped or hindered the origin of life. Our home planet ...