“The presence of liquid water [on Mars] is a broad topic that includes rains, rivers, lakes, as well as oceans,” says Ezat ...

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

Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests.

In addition to shaping the interior of rocky planets, molten rock located deep within these planets may also contribute to ...

Our planet is unique for its ability to sustain abundant life. From studies of the rock record, scientists believe life had already emerged on Earth at least 3.5 billion years ago and probably much ...

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

The curious minds at What If explore a world where algae took over every ocean, revealing environmental, ecological, and societal consequences of a green planetary takeover.

A mammoth opening leg from Alicante to Auckland will be the longest in race history ALICANTE, SPAIN, January 21, 2026 ...

Mars today is a frozen, dusty desert. But if you look deep inside Valles Marineris, the largest canyon system on Mars and in ...

The views of the setting sun are just as spectacular from space as they are on Earth.

Marine microbes cooperate far more than they compete, reshaping how scientists understand ocean ecosystems and climate ...

In late 2025, scientists reported that for the first time, they were able to detect concentrations of plastic pollution on ...