A geological mystery is unfolding far beneath our feet, and it may shed light on the life-sustaining magnetic field that extends far above our heads. ...read more
We have been broadcasting for over 100 years. Now a new 3D map of the galaxy reveals the stars these signals have reached that can also see Earth. ...read more
Meet the Big Crunch: In this theory on the origins of the universe, the Big Bang was not the beginning, but a repeating pattern of expansion and contraction. ...read more
When sonar detected a massive object hundreds of meters below the water, operators suspected sunken islands. It was actually the deep scattering layer. ...read more