Science
Related: About this forumHalf the matter in the universe was missing. Scientists just found it hiding in the cosmos.
By J. Xavier Prochaska, Jean-Pierre Macquart 8 hours ago
Diligence, technological progress and a little luck have together solved a 20-year mystery of the
cosmos. (Image: © CSIRO/Alex Cherney)
In the late 1990s, cosmologists made a prediction about how much ordinary matter there should be in the universe. About 5%, they estimated, should be regular stuff with the rest a mixture of dark matter and dark energy. But when cosmologists counted up everything they could see or measure at the time, they came up short. By a lot.
The sum of all the ordinary matter that cosmologists measured only added up to about half of the 5% what was supposed to be in the universe.
This is known as the "missing baryon problem" and for over 20 years, cosmologists like us looked hard for this matter without success.
It took the discovery of a new celestial phenomenon and entirely new telescope technology, but earlier this year, our team finally found the missing matter.
More:
https://www.space.com/missing-baryon-matter-discovered-cosmos.html?utm_source=notification
The Velveteen Ocelot
(115,674 posts)Beakybird
(3,332 posts)empedocles
(15,751 posts)Cosmos is a whole harmonious and orderly system that is governed by natural law while universe is everything that exists including time and space, matter, and the laws that govern them. 2.The word cosmos comes from the Greek word kosmos which means order or orderly arrangement while the word universe comes from the Latin word universus which means whole or entire, also from the Greek holos which also means whole..
Difference Between Cosmos and Universe | Difference Between
www.differencebetween.net/science/nature/difference-between-cosmos-and-uni