aurora borealis -
600 Million Years and Counting…
I was pretty bored so I decided to make some GIFs of the last 600 million years of our planet’s plate tectonics.
The first GIF is a global mollewide projection. The second one is of the Colorado Plateau and the North American Southwest. The next GIF is of the entire formation of the North American Continent. The fourth GIF is of geologic and tectonic evolution of Europe. And finally the last one is the same as the first except in rectangular format.
I obtained the images from Global Paleogeography and them compiled them one by one into Photoshop with the end result being the above GIFs.
Composite image shows two black holes orbiting each other
By: Brian Koberlein
The image above shows two supermassive black holes orbiting each other. It is a composite image where the blue/white indicates x-rays and the pink indicates radio wavelengths. It may look like they are orbiting closely, but the black holes are about 25,000 light years apart, which is about the same distance the Sun is from the center of the Milky Way.
What’s particularly striking about this image is just how clearly we can see the features of this binary system. The hot accretion regions surrounding the black holes clearly show their locations, and each black hole shows jets in radio. It’s not often that we can see a supermassive black hole with such detail.