NASA, through a very well explained video, shows us that the dinosaurs originated from the other side of galaxy.
NASA is the largest space studies and research entity in the world. Yes it is. They are not the only ones who study everything related to outer space. That’s why when NASA talks about space dinosaurs, we all pay attention, especially when there’s a video.
NASA takes seriously the fact that dinosaurs may have originated elsewhere in the galaxy. This sounds crazy, so you have to watch a video where everything is explained.
The video was posted by Dr. Jessie Christiansen in her Twitter account. She is a NASA researcher and the publication is as you will see below.
She says:
I was always interested in galactic archeology, but I don’t think that’s what they meant.
The sun takes about 200 million years to orbit the center of the galaxy, which means that the last time we were there occurred at the beginning of the Jurassic period. The dinosaurs walked the land and the sea.
The Jurassic period lasted 55 million years.
The Cretaceous period ranged from 145 to 66 million ago. The middle Cretaceous occurred on the other side of the galaxy.
65 million years ago, extinction occurred.
The rise of mammals has lasted 65 million years to the present.
The sun takes about 200 million years to orbit the center of the galaxy.
What will Earth look like on the next galactic anniversary? While not as exciting as seeing invading dinosaurs, at least it leaves us with a good question. And perhaps until then, the human is not even a memory on the surface of the earth.
I have always been interested in galactic archaeology, but I don’t think this is what they meant.
Did you know that dinosaurs lived on the other side of the Galaxy? pic.twitter.com/ngGCAu0fYU
— Dr. Jessie Christiansen (@aussiastronomer) 28 August 2019
Christiansen said it took her about four hours to make the film using timed animations in PowerPoint. She also noted a couple of minor corrections to the text in her video: Plesiosaurs are not dinosaurs, and we complete a galactic orbit every 250 million years, not 200 million years.
‘A spiral through space’
But galactic movement is more complicated than the video shows. The other stars and planetary systems in the galaxy are also moving, at different speeds and in different orbits. The inner portions spin faster than the outer regions.
What’s more, the galaxy itself is moving through space, slowly approaching the nearby Andromeda galaxy.
“The animation kind of makes it seem like we’ve come back to the same spot, but in reality the whole galaxy has moved a very long way,” Christiansen said. “It’s more like we’re doing a spiral through space. As the whole galaxy’s moving and we’re rotating around the center, it kind of creates this spiral.”
So in the solar system’s rotation around the galactic center, we’re not returning to a fixed point. The neighborhood is different from the last time we were here.
Earth, however, is not drastically different; it still supports complex life. That’s partially thanks to the path of our sun’s galactic orbit.
“Our solar system doesn’t travel to the center of the galaxy and then back again,” Christiansen said. “We always stay about this distance away.”
In other words, even as our solar system travels through the Milky Way, it doesn’t approach the inhospitable center, where life probably wouldn’t survive.
“There’s a lot of stars, it’s dynamically unstable, there’s a lot of radiation,” Christiansen said. “Our solar system certainly doesn’t pass through that.”
That’s a huge part of why dinosaurs, mammals, or any other form of life can exist on Earth.
