Scientists say the topography of the ocean floor is less well known than the surfaces of Mars, Mercury or Venus and that charting the depth and shape of the seabed will help understand the impact ...

Certain spacecraft carry altimeter instruments that can infer seafloor topography from the way its gravity sculpts the water surface above - but this only gives a best resolution at over a ...

These international groups have devised all manner of autonomous airborne, surface, and sub-surface vehicles to take on the task of mapping seafloor topography. They will each get about 10 days to ...