Hycean worlds, which are a possible kind of exoplanet with deep oceans surrounded by a thick envelope of hydrogen, could ...

Researchers have found new evidence for a massive subsurface ocean on Mars, again raising the possibility of microbial life.

The fish, with its large, bulbous body, tiny eyes and gaping mouth, looks like something you'd expect to find on another planet. Roman Fedortsov hooked the beast in the northern Pacific Ocean and ...

Scientists now believe there was a large ocean on the north side of the planet - and conditions that ... of the University of California, Berkeley, another co-author of the paper, said: "The ...

Images taken by the Viking spacecraft in the 1970s first led to speculation that an ocean once existed on Mars, likely during a time when the planet had a denser atmosphere that could retain heat ...

Also driven by temperature and wind, ocean currents help to regulate the planet’s climate, transporting warm and cold water around the planet. They’re also critical for marine life ...