Get short URL
Earth maintains a complicated life partly thanks to the path of the galactic orbit of our sun as it deviates from the inhospitable center of the galaxy where life he probably couldn't survive.
A NASA scientist uncovered the time scale of dinosaurs by tracing their evolution and death by assembling stunning animation showing Earth across the Milky Way during their lifetime, Business Insider reports.
In tracking the movement of our solar system through the Milky Way, Dr. Jesse Christiansen shows that humanity has been present on Earth for only five million years ̵
I was always interested in galactic archeology, but I don't think they meant it.
Did you know that dinosaurs lived on the other side of the Galaxy? pic.twitter.com/ngGCAu0fYU
– Dr. Jesse Christiansen (@aussiastronomer) August 28, 2019
Christiansen says she conceived the idea of giving an animated illustration of this timeline when she starred at a star party at the California Institute of Technology in Pasadena. At the time she mentioned that our solar system was across the galaxy when dinosaurs roamed.
"That was the first time I found out that those time scales – archeological, fossil-record time scales and astronomical time scales – were actually a kind of coincidence together," Christiansen was quoted from the output.
"Then I had this idea that I can outline the evolution of dinosaurs by rotating the galaxy. "
According to Christiansen, it took about four hours to make a movie that uses time-lapse animations in PowerPoint.
Because Earth and other planets orbit the Sun, our star actually orbits the Milky Way at an average speed of 230. kilometers per second.
AP Photo / Daniel Reinhardt
The Milky Way and meteor trails illuminate the sky over Burg on Baltic Island Fecharn, North Germany, Friday, April 20, 2018, when Lyrid's meteor shower fell
on the Solar System it takes approximately 250 million years to complete the journey, and during that time the entire Milky Way travels through the universe.
"The animation kind of feels like we're back in the same place, but in fact the whole galaxy has been going a long way. It's more like spiraling through space. Because the entire galaxy moves and rotates around the center, it somehow creates that spiral, "explains Christiansen.
So when the solar system rotates around the galactic center, we do not return to a fixed point.  that the "neighborhood" is different from last time, the Earth is not drastically different.
It still maintains a complex life, in part thanks to the path of the galactic orbit of our Sun, which does not approach the hostile center of the galaxy.
"Our solar system is not traveling to the center of the galaxy and then back again. We always stay that distance, "says Christiansen.
Dinosaurs roam the Earth for approximately 177 million years before the deadly asteroid impact, which is thought to have led to their extinction.
Impression of an asteroid artist who killed dinosaurs.
The new animation by Christiansen shows that 66 million years ago, when the asteroid hit Earth, our planet was on the other side of the Milky Way.
In comparison, humanity has been present on Earth for only five million years – less than nine percent of the time of the dinosaurs.
It is still debated how long dinosaurs manage to survive after their initial impact.
This artist's submission, submitted by Mark Witton in April 2017, shows the Teleocrater rhadinus, a center, four-legged, carnivorous reptile, and a close relative of a mammal-eating mammalian relative, Cynognathus.
Previous research from the University of Berkeley, California, finds that there is evidence that -Avian dinosaurs survived about 30,000 years after that and eventually disappeared due to 100,000 years of drastic climate change caused by the impact.
Others, however, believe that the beasts have disappeared for months, before paleontologist Ken Lakovara said:
"They died suddenly and were buried quickly."