Jezero Crater on Mars was once home to a lake, delta and rivers. See an animation of what it could have looked like when water poured into the crater billions of years ago and present day.

Water current pervades every facet of existence for life in lotic (flowing water) habitats. Maintaining position in the face of flow can be energetically costly, but provides access to a conveyer ...

But water is so hard to control, even in animation, where you can control everything. You have to understand the physics to be able to master it. I can’t really do that, but luckily, I had ...