A tower of 100 empty plastic gallon jugs might seem an unlikely object in a museum exhibit. But the tower presents an ...

Scientists have discovered evidence that liquid water was ... on Mars that look like they shouldn't be there The researchers also analyzed the height and spacing of the ripple waves to determine ...

It is a transparent shallow tray of water, with a light shining down through it onto a white card below, to more easily see the motion of the ripples created on the water’s surface. Ripples can ...