Paul M. Sutter is an astrophysicist at The Ohio State University, host of Ask a Spaceman and "Space Radio," and author of "Your Place in the Universe." Sutter contributed this article to Space.com's ...

We may soon find out whether we live in an axiverse. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. What if I told you that our universe was ...

of its present age and the presence of the galaxy string defies existing models, which can not explain how a string this big could have formed so long ago. This is the first time astronomers have been ...

Why strings? What are they made of? How did physicists even come up with this bizarre idea? And what’s all this nonsense of extra dimensions? PBS Space Time is available to stream on pbs.org and the ...

New images from space reveal a photogenic, yet puzzling, look at tangled cosmic filaments that may be shaped by interstellar sonic booms throughout our galaxy. The filaments are strings of gas in ...