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Until the Apollo missions, we had no idea how the moon got here, just a series of educated guesses. They rewrote the story of the moon’s origins.

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

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

From anger to awe: How one woman overcame “debilitating trauma” to conquer a near-impossible 53-hour swim at 64.

Although mammals may be the dominant form of life today, we’re relative newcomers on planet Earth. Here’s our place in natural history.

If there’s life lurking on the moons of Saturn and Jupiter, could our instruments even detect it?

The primary causes of global climate change are all due to human activity. Adding aerosols to our atmosphere only exacerbates the problem.

On a cosmic scale, our existence seems insignificant and inconsequential. But from another perspective, humans are completely remarkable.

Contrary to conventional wisdom, matter can escape the center of the Earth.

Frozen adversity set the stage for an explosion of diversity.

Five new places scientists have uncovered plastics.

“Amid the chaos, he remembered his life being eerily calm as he knew it wasn’t if, but when they would be hacked to pieces. He just kept kicking.”

The outer planets’ clouds hide the weirdness within.

They’re in our brains, hearts, and blood — but what are they doing to us?

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.

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

Scientists still aren’t sure how they perform without those restorative Z’s.

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

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

Step back from the AI maelstrom and explore Lem’s “Summa Technologiae” for a detached look at technology’s role in human evolution.

Environmental progress is happening quickly but we must keep pushing for change.

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

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

Despite billions of years of life on Earth, humans first arose only ~300,000 years ago. It took all that time to make our arrival possible.

Our cosmic home, planet Earth, has been through a lot over the past 4.5 billion years. Here are some of its most spectacular changes

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

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

At extremely close distances to their stars, even rocky planets can be completely disintegrated. We’ve just caught our first one in action.

Looking back on our planet’s early history offers a new (and less crazy) meaning for the idea of a “flat Earth.”

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