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 ...

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

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

Eos, a newly discovered hydrogen cloud just 300 light-years from Earth, offers a rare look at hidden star-forming regions.

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 ...

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 cloud, named Eos, is chock-full of molecular hydrogen and possibly rife with star-forming potential in the future.

Cosmic rays? Or maybe just electric charges. Put a cup on and start experimenting. If you want to reliably see cosmic rays, build a cloud chamber. All you really need is a plastic bottle.

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 ...

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 ...