Mercury and Saturn are neighbors in the sky, about a half a fist held upright and at arm’s length above the west-southwestern ...

Newly discovered Quipu, a superstructure in which galaxies group together in clusters and clusters of clusters, is the largest known structure in the universe in terms of length, scientists claim.

To construct a warp drive, we'd need 10 times more negative energy than all of the positive energy in the universe.