Sound waves 'fossilized' in the arrangements of galaxies across the Universe support the theory that the Milky Way galaxy floats adrift in a giant void in space. If this is the case, we could be ...

Our best observations can't come up with a single answer for how quickly the universe is expanding. Maybe that's because our galaxy is at the center of a giant void. When you purchase through links on ...

From the deck of a ship or the window of a plane, it feels obvious that “down” points toward Earth and “up” points toward the ...