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The Antarctic Treaty of 1959 prohibited nations from making new land claims on the continent. But it never mentioned claims from private individuals.

The classic picture of Jupiter’s great rocky core might be entirely wrong.

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

From the tablets of the Babylonians to the telescopes of modern science, humans have always looked to the skies for fundamental answers.

Once at the pinnacle of Amsterdam’s art scene, Rembrandt van Rijn eventually found himself outcompeted by his own students.

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

Nobody actually knows what will come of AI. But we can console ourselves with the knowledge that nobody has ever really known anything about the future.

Multiple lines of evidence — physical, chemical, and biological — must converge for scientists to conclude that alien life has been found.

While Mars is known as a frozen, red planet today, it has all the evidence we could ask for of a watery past, lasting for approximately the first 1.5 billion […]

Astrophysicist Michelle Thaller explains how a solar storm could wipe out civilization… and what we can do to prevent catastrophe.

Invisible cloaks. Ghost imaging. Scientists are manipulating light in ways that were once only science fiction.

From life on Earth to the planet itself, there are four ways our planet will actually experience “the end,” no matter how we define it.

There will always be “wolf-criers” whose claims wither under scrutiny. But aliens are certainly out there, if science dares to find them.

Get ready for the most peculiar road trip that will help you understand the vastness and emptiness of the solar system — and Sweden.

Asteroid collisions aren’t always bad.

The far side of the Moon is incredibly different from the Earth-facing side. 63 years later, we know why the Moon’s faces are not alike.

Neptune holds records in our Solar System, but the Universe gets even faster. Here on Earth, extreme weather events can cause dramatic wind speed spikes. When hurricanes are at their most […]

Ingenuity is remarkable. But these 5 exploration ideas are revolutionary. Telescopes are our initial tools for revealing and studying foreign worlds. Hubble images of Mars, particularly around the regions with […]

Life finds a way — particularly if it has a moon.

Using cellulose from trees and a synthetic polymer, MIT researchers have created a material that “is stronger and tougher than some types of bone, and harder than typical aluminum alloys.”

The answer may lie in the particular way sand forms on Titan.

Fifteen human space oddities.

“You develop an instant global consciousness, a people orientation, an intense dissatisfaction with the state of the world, and a compulsion to do something about it.”

The original principle of relativity, proposed by Galileo way back in the early 1600s, remains true in its unchanged form even today.

Straddling the bounds of science and religion, Newton wondered who set the planets in motion. Astrophysics reveals the answer.

Sure, there’s less daylight during winter than summer, as your hemisphere is tilted away from the Sun. But darkness goes deeper than that.

Newborn stars are surrounded only by a featureless disk. Debris disks persist for hundreds of millions of years. So when do planets form?

Although we still don’t know the question, we know that the answer to life, the Universe, and everything is 42. Here are 5 possibilities.

Finding out we’re not alone in the Universe would fundamentally change everything. Here’s how we could do it.

Valles Marineris is the Solar System’s grandest canyon, many times longer, wider, and deeper than the Grand Canyon. What scarred Mars so?