[Rockhounds] NASA Scientist Shows Dinosaurs Roamed Earth on The Other Side of The Milky Way

[Kreigh Tomaszewski]

When dinosaurs ruled the Earth, the planet was on a completely different
side of the galaxy.

A new animation by NASA scientist Jessie Christiansen
<https://twitter.com/aussiastronomer> shows just how long the dinosaurs'
reign lasted, and how short the era of humans has been in comparison, by
tracing our solar system's movement through the Milky Way.

Our Sun orbits the galaxy's centre, completing its rotation every 250
million years or so. So Christiansen's animation shows that last time our
Solar System was at its current point in the galaxy, the Triassic Period
was in full swing and dinosaurs were just beginning to emerge.

Many of the most iconic dinosaurs roamed Earth when the planet was in a
very different part of the Milky Way.

https://www.sciencealert.com/dinosaurs-roamed-the-earth-on-the-other-side-of-the-milky-way