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No one can actually see it. No one knows what it is or how it works. But, after a five-year study of 200,000 galaxies, scientists are as certain as they’ll ever be that dark energy exists, and it is tearing our universe apart.
Dark energy is the invisible force that scientists know is there, but can’t see. They know it’s there because in the early 90’s scientists observed giant galactic masses, like supernovae, were moving away from us at accelerating speeds, ignoring the laws of gravity. At some point in our Universe’s history, gravity stopped being the dominant force. Galaxies cluster formation slowed down. Scientists are now certain dark energy is the driving influence behind the expansion of our universe over the last 8 billion years.
Researchers used NASA’s Galaxy Evolution Explorer space telescope and a Australian observatory to peer 7 billion years back in time, the period of time scientists believe dark energy has been the dominant force. The data they collected�confirmed earlier findings, that something is counteracting gravity. According to the findings dark energy accounts for nearly 73 percent of the mass-energy of the universe, dark matter, another barely understood piece of the universe, makes up 23 percent of the universe. Baryonic matter (me, you, stars, solar systems, and galaxies) makes up the remaining 4 percent.
The universe will likely keep expanding, and expanding until each galaxy is so far apart the only object in the sky at night will be the moon.
We’ll all be millions of�millennia gone by then though.
Well that could explain a lot.
Here is a theorie
Something like 4 or 5 billion years ago, Extraterrestrial form of life were closer to us, so easier for them to come and visit. When looking into old old old belief of civilisation from very long ago, like Mayan or those long before them ( just a example, there is other ) The Maya were keen astronomers and had observatories on high ground, and it is say that they did meet with people from Venus…and had like space-port and stuff, ‘bit like a few belief about Egyptian too.
Learning today that, well, Venus was closer to us that is it today make me think that earth might just have been visited already, but those guys cannot come to us any more now.
Just a theorie, nothing serious. But Hey !!
I want to believe.