Scientists have traced ancient Martian shorelines inside a giant canyon, revealing where a vast ocean once stood and why ...

Ancient shoreline features hint that water on Mars once formed a vast ocean.

Using images from cameras on Mars orbiters, an international research team has discovered structures on Mars that are very ...

"The structures that we were able to identify in the images are clearly the mouth of a river into an ocean." The post ...

The Indian Ocean holds the lowest gravity anomaly on Earth, a vast and subtle depression in the planet’s gravitational field ...

Spacecraft orbiting the Red Planet have helped researchers map out an ancient coastline that surrounded a large ocean billions of years ago ...

Each year, vast blooms of phytoplankton spread across the Southern Ocean, drawing carbon dioxide from the atmosphere and ...

Redwing is autonomous underwater glider expected to circle the world in a little over four years, then return to Cape Cod.

Scientists exploring the South China Sea's Dragon Hole, a deep underwater sinkhole, discovered a thriving microbial world and ...

The vast majority of our planet’s oceans remain unexplored, hiding secrets that challenge everything we thought we knew about ...

Europa has a deep ocean, but a new study suggests its seafloor may be too quiet to supply the energy life needs to survive.

Beneath Antarctica’s Ross Ice Shelf is a hidden ocean – a vast, dark cavity roughly twice the volume of the North Sea.