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Dark Matter - Page 3

Scientists claim breakthrough in antimatter hunt

Scientists claimed a breakthrough toward solving one of the biggest riddles of physics, trapping an "anti-atom" for the first time in a quest to understand what happened to all the antimatter that has vanished since the Big Bang. Ref. Source 4

Matter Dark

Wow not that I know a great deal about this topic but this seems like a huge event for the scientific world.

I think they have been trying to trap this type of atom for some time so no they have it will allow them to perhaps better understand it.

Dark Matter UFO & Writing Art Education Sciences

Let's hope that while they're investigating it they can also contain it so that it does not get huge and swallow us all up!

Page 3 Matter Dark

Anti-matter, dark matter and dark energy are all VERY DIFFERENT things.

Anti-matter is the complement of matter. Anti-matter reacts with regular matter in a reaction that annihilates both matter ant anti-matter particles and releases energy. So as soon as an atom of anti-matter touches an atom of matter, they are both annihilated, and energy is released.

Furthermore, to create in a lab 1 gram of anti-matter, it would require more time than the age of the universe. Bottom line? We are very, VERY safe

Dark matter is matter that does not emit any light . Not just regular light, any light. No infra-red or ultraviolet, nothing. So we cannot see it with any of our instruments.
But we can detect it, because just like normal matter, it has mass. And has a gravitational pull. It affects stars and planets and even deflects light coming from stars. In fact, that's how we detect dark matter. We measure the light deviations between a star and Earth and see if the light was bent in any way. Other methods of detecting dark matter include measuring the speed of rotation of galaxies and counting the stars that compose them and figuring out if the mass and speed match.

Now for the Dark energy!

dark energy has never been detected. It's hypothetical. It has never been detected because it's theory states that it doesn't interact with matter. Dark energy is, in theory, passing through us at every moment, and makes up the skeleton of the universe. It's like a web that permeates all universe and gives it shape.
It was theorised first by Einstein, to explain why the universe is expanding when it really should be contracting (due to the attraction of gravity by all celestial bodies).
If theory is correct, 73% of the Universe is made of Dark Energy. Dark matter and regular matter make up the remaining 27%.

So, I hope to have cleared the clouds surrounding these three different but confusing concepts. If anyone has any doubts, feel free to ask questions!

Matter Dark

Mysterious signal could be dark matter

ASTRONOMERS think an unidentfied X-ray signal found 240 million light years from Earth could be dark matter. Ref. Source 9

Dark Matter

What dark matter might be

There are indications that we might never see the universe's mysterious dark matter. Now researchers turn this somehow depressing scenario into an advantage and propose a new model for what dark matter might be -- and how to test it. Ref. Source 1u.

Dark Matter - Page 3

Dark matter does not contain certain axion-like particles

Researchers are getting closer to corner light dark-matter particle models. Observations can rule out some axion-like particles in the quest for the content of dark matter. Ref. Source 8x.

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Scientist suggests possible link between primordial black holes and dark matter

An intriguing alternative view is that dark matter is made of black holes formed during the first second of our universe's existence, known as primordial black holes. A scientist suggests that this interpretation aligns with our knowledge of cosmic infrared and X-ray background glows and may explain the unexpectedly high masses of merging black holes detected last year. Ref. Source 6l.