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Ocean fertilization is extremely controversial, but if done correctly, it just might work.

Chemical changes inside Mars' core caused it to lose its magnetic field. This, in turn, caused it to lose its oceans. But how?

Seventy-five years after the anomaly's discovery, scientists have finally figured out why sea levels are so much lower here.

Scuba divers often appear to be swimming through a calm and muffled universe. This couldn't be farther from the truth.

A Harvard astronomer went to the bottom of the ocean, claiming he recovered alien technology. But what does the science actually indicate?

Passing chunks of ice can fertilize ocean waters and play a role in the planet’s carbon cycle.

But scientists have found it again.

Some fascinating observations of K2-18b have come along with horrendous, speculative communications. There's no evidence for oceans or life.

If we're going to discuss oceanography and climate change, we should at least identify the currents correctly.

Frozen adversity set the stage for an explosion of diversity.

Many countries just ship their plastic waste overseas.

For centuries, the only way to travel between the Old and New World was through ships like the RMS Lusitania. Experiences varied wildly depending on your income.

Experts say it’s likely space junk—and there’s plenty more where that came from.

The outer planets' clouds hide the weirdness within.

Flashy desalination technology is more costly and cumbersome than many other solutions.

Some microbes can withstand Earth's most inhospitable corners, hinting that life may be able to survive similarly extreme conditions on other worlds.

Compared to Earth, Mars is small, cold, dry, and lifeless. But 3.4 billion years ago, a killer asteroid caused a Martian megatsunami.

An un-crewed sailing drone discovered the unusually shaped, slumbering seamount.

Embark on a journey through one of the most profound ecological transitions in the history of complex life.

The sky is blue. The oceans are blue. While science can explain them both, the reasons for each are entirely different.

Finding alien technology on the seafloor would be truly incredible. This extraordinary claim, however, is debunked by the actual evidence.

The divers spend their waking hours either under hundreds of feet of water on the ocean floor or squeezed into an area the size of a restaurant booth.

The cycles of life all rely on the dynamism of the Earth's crust.

Simple physics makes hauling vast ice chunks thousands of miles fiendishly difficult — but not impossible.

Mercury, Venus, and Mars are all uni-plate planets, and may always have been. Here's what's known about why Earth, uniquely, has plate tectonics.

Europa may be difficult to access. But if a recent study is correct, its subsurface ocean would be more accessible than previously thought.

The fear of deep bodies of water may be evolutionarily ingrained.

A marine scientist explains the threat of the Loop Current, a 800-pound gorilla of Gulf hurricane risks.

To this day, one cult believes that Lemuria was real, and that its people left us the sacred wisdom to revive their advanced civilization.

Mansa Musa, perhaps history's richest man, claims he ascended the throne of Mali after his predecessor sailed west and never came back. Could he have made it to the New World?