"Universe's ultraviolet background could provide clues about missing galaxies." ScienceDaily. ScienceDaily, 22 March 2017. <www.sciencedaily.com / releases / 2017 / 03 / 170322092411.htm>.

Called the cosmic microwave background, this light reveals secrets of the universe's origins, fate, ingredients and more. Image released March 21, 2013. [Full story.] ...

For instance, accurately describing the cosmic microwave background has been vital for cosmology, but the universe was completely opaque to electromagnetic radiation for its first 379,000 years.

Astronomers have developed a new technique to detect the cosmic ultraviolet background radiation that keeps the universe ionized and hot. Their findings provide clues as to why astronomers observe ...

Scientists may have identified the gravitational waves that make up some of the universe’s background, not just those coming from unusual events like black hole collisions. New Atlas reports ...

The universe’s background starlight is twice as bright as expected It took a spacecraft at the solar system’s edge to make precise enough observations of dark sky ...