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More than any other equation in physics, E = mc² is recognizable and profound. But what do we actually learn about reality from it?

A recent experiment challenges the leading dark matter theory and hints at new directions for uncovering one of the Universe’s biggest mysteries.

Back in the 1930s, Fritz Zwicky postulated the existence of dark matter. No one took it seriously until Vera Rubin’s work: 40 years later.

If you want to understand what the Universe is, how it began, evolved, and will eventually end, astrophysics is the only way to go.

Roger Babson wanted a “partial insulator, reflector, or absorber of gravity” — something, anything, that would stop or dampen it.

Astronomers in 2017 caught an image of a supermassive black hole in a galaxy far, far away. Doing it in our own galaxy is a huge milestone.

A perfect map is as useless as it is impossible to create.

There is no such thing as a void in the Universe.

Forty Starlink satellites were destroyed earlier this year in a geomagnetic storm.

The intensely white coloration of the shrimp is a remarkable feat of bioengineering.

If you bring too much mass or energy together in one location, you’ll inevitably create a black hole. So why didn’t the Big Bang become one?

As Marcel Proust said, “The real voyage of discovery… consists not in seeking new landscapes, but in having new eyes.”

In the 20th century, many options abounded as to our cosmic origins. Today, only the Big Bang survives, thanks to this critical evidence.

Particles behave differently when freed from the force of gravity. A new space factory aims to use this to synthesize pharmaceuticals.

NASA’s minivan-sized drone is scheduled to search for signs of life on Titan in 2034.

Finding this missing piece of water’s path through the universe offers clues to how it came to be on Earth.

Foster your own moments of mystery.

Isaac Newton and Albert Einstein are locked in an eternal battle over the nature of gravity. Whose side are you on?

With the discovery of Porphyrion, we’ve now seen black hole jets spanning 24 million light-years: the scale of the cosmic web.

In a world without clocks, people used common activities in place of time units. How long it took you to go to the toilet mattered.

Welcome to The Nightcrawler — a weekly newsletter from Eric Markowitz covering tech, innovation, and long-term thinking.

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

U.S. particle physicists recently recommended a list of major research projects that they hope will receive federal funding.

Is it ever possible for God to violate the laws of nature?

You could call this rectangle covering parts of Iran, Iraq, and the Arabian Peninsula the “Oven Window.”

The recently discovered Oort cloud comet, Bernardinelli–Bernstein, has the largest known nucleus: 119 km. Here’s what it could do to Earth.

The Bullet Cluster has, for nearly 20 years, been hailed as an empirical “proof” of dark matter. Can their detractors explain it away?

There’s a fine line between ambition and ruthlessness.

An analysis of Indonesian cave paintings is reframing the history of human art, though whether the paintings really were created by human hands remains an open question.

Looking at our planet with post-Copernican eyes has the power to change how we relate to it and each other.