A new analysis of the sky has finally confirmed where the missing half of the Universe's visible matter has been hiding. In the space around galaxies, it lurks as huge, invisible clouds of ionized ...

Astronomers tallying up all the normal matter—stars, galaxies and gas—in the universe today have come up embarrassingly short of the total matter produced in the Big Bang 13.6 billion years ago. In ...

Astrophotographer Miguel Claro captured a stunning view of the Lion Nebula in the Cepehus constellation, revealing colorful clouds of ionized hydrogen gas. When you purchase through links on our site, ...

In a disinfection market crowded with "innovative" cleaners that are starting to show defects (ranging from peeling paint to ineffectual outcomes), SteraMist's ionized Hydrogen Peroxide (iHP) has a ...