Cosmic rays are one of the greatest challenges for space travel and pose a considerable risk to humans and materials. For the first time on European soil, an international research team in ...

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how planets form. Across our galaxy, astronomers routinely observe a ...

Astronomers have uncovered a hidden cosmic web of galaxies and gas by mapping hydrogen light from the early universe.

Astronomers have discovered that galaxies are not randomly scattered through space but arranged in enormous cosmic filaments and walls forming a vast cosmic web. These structures can stretch hundreds ...

Scientists mapped a hidden "sea of light" from hydrogen 9–11 billion years ago, revealing how the early universe was structured. When you purchase through links on our site, we may earn an affiliate ...

A unique technique allowed astronomers to see the early universe as a "sea of light" and explore the effects of gravity and dark energy on cosmic evolution.

Welcome to Smithsonian Open Access, where you can download, share, and reuse millions of the Smithsonian’s images—right now, without asking. With new platforms and tools, you have easier access to ...