How to make the cosmic web give up the matter it’s hiding

Credit: ESA/Hubble & NASAAstronomers and cosmologists have an inventory problem: They haven’t been able to account for a fair amount of the stuff that makes up our universe. There are the longstanding challenges with pinpointing dark energy and dark matter, two invisible components that together make up more than 95 percent of the cosmos. But there is also the lesser-known problem of missing baryon particles. Baryons are subatomic particles that include protons and neutrons, which form the nuclei of atoms. Baryonic matter — part of what we consider “normal matter” in the universe — makes up everything we are familiar with: stars, planets, the chair you are sitting on, the device you are using to read this, and you. So there was understandable excitement this week when it emerged that two separate teams of researchers may have found this “missing” baryonic matter. When astronomers observe the universe, they find just 10 percent of normal baryonic matter as easily observable matter

How to make the cosmic web give up the matter it’s hiding

Half the ordinary matter in the universe is unaccounted for. Astronomers may now have a new way to see it spanning the space between galaxies.

Wed 11 Oct 17 from ScienceNews

The Mystery of the Universe's Missing 'Normal' Matter Has Begun to Unravel

Previously undetected matter was found in the form of gas filaments between galaxies, which is a major step toward explaining the structure of the cosmos.

Mon 16 Oct 17 from

Scientists Find Universe’s Missing Atoms

Thu 12 Oct 17 from

Half of the universe's 'missing matter' has been found

In a world first, French astronomers and experts at the University of Edinburgh identified the normal matter in the universe that past studies of galaxies and stars have been unable to find. ...

Tue 10 Oct 17 from Daily Mail

Scientists just found half of the universe’s missing matter, and strengthened the Standard Model in the process

It was floating around where we estimated it would be.

Tue 10 Oct 17 from ZME Science

Scientists locate half of the universe's missing ordinary matter

Scientists have discovered the location of the universe's missing matter, the other half of ordinary matter that could not be previously observed but which scientists knew to exist. Two independent ...

Tue 10 Oct 17 from Inhabitat

Half the Matter in the Universe Just Found

By now most people are familiar with dark matter – that mysterious substance which has gravity but otherwise does not seem to interact with the normal matter with which we are most familiar. ...

Tue 10 Oct 17 from NeuroLogica


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