Awesome Aurora Borealis Space Photo | Churchill Polar Bears
An amazing northern lights photo from space showing the ring around the earth where the aurora is most prominent.
ALMA telescope spies a supermassive black hole’s spinning disk | EarthSky.org
For decades, astronomers have been talking about of galaxies with supermassive black holes at their cores. Now they say they've clearly confirmed a black hole's encircling, dusty, spinning disk of gas.