Although most of the Universe’s mass is dark matter, which gravitates just as well as normal matter, it still can’t make black holes.
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From high school through the professional ranks, physicists never tire of Newton’s second law.
We know it couldn’t have began from a singularity. So how small could it have been at the absolute minimum?
Science was never the same after meeting ‘the particle who lived.’ Back in the early 1930s, there were only a few known fundamental particles that made up the Universe. If you […]
What is human dignity? Here’s a primer, told through 200 years of great essays, lectures, and novels.
More than a century after the end of hostilities in 1918, some battlefields of WWI are still deadly enough to kill you.
From before the Big Bang to the present day, the Universe goes through many eras. Dark energy heralds the final one.
A new study discovers how blazars shoot out jets of radiation towards Earth.
Over the coming decades, over 100,000 new satellites are expected. For countless millennia, whenever we were faced with a clear, cloudless, moonless night, all of humanity was able to witness […]
Hidden variables aren’t ruled out, but they can’t get rid of quantum weirdness. Ever since the discovery of the bizarre behavior of quantum systems, we’ve been forced to reckon with […]
The first world that humans should inhabit beyond the Earth is the Moon, not Mars. Here’s why terraforming our lunar neighbor is so appealing.
Yet, if they only obey the rules that we know, there’s no way to explain why. One of the greatest puzzles in all of physics is that the laws of nature — as […]
Science doesn’t exist in a cultural and existential vacuum and its teaching shouldn’t either.
How a controversial study on psychic powers caused a revolution in psychology research.
It’s fundamentally different from space. Here’s how. Here’s a question that most of us have been asked at some point in our lives, “what’s the shortest distance between two points?” By […]
The microbes that eventually produced the planet’s oxygen had to breathe something, after all.
Think you can solve it? One mathematician has already offered about $1,000 and a bottle of champagne to whoever cracks it first.
Scalars, vectors, and tensors come up all the time in science. But what are they? One of the major goals of science is to describe our reality as accurately as possible. […]
Dark matter must gravitate, so why couldn’t the graviton solve it? One of the most puzzling observations about the Universe is that there isn’t enough matter — at least, matter that we know […]
In our Universe, a left hand reflected in a mirror or pond appears to be a right hand. While most of the laws of nature are symmetric under reflections, obeying […]
The compound found in “magic mushrooms” has significant and fast-acting impact on the brains of rats.
The Universe, according to our best understanding, just doesn’t add up. The Universe, according to our best understanding, just doesn’t add up. Wherever we look — from tiny subatomic scales all the way […]
The ultimate lesson from Dr. Birx is one we should never, ever repeat. About a year ago, as the world experienced the deadly “first wave” associated with the coronavirus pandemic, many […]
Never made a turkey before? Don’t worry, science can help.
It had long seemed impossible that supermassive black holes could grow to such enormous sizes. But the biggest problem is now solved.
What qualifies someone for the top position in American government?
Perspective twisting books on biology, social science, medical science, cosmology, and tech.
Quick! There’s a runaway train on the tracks. Some dastardly evildoer has knocked the driver out cold and tied five people to the tracks ahead. The train is barreling down […]
Learn how to get the best views no matter where you are. Every year, no matter what else is occurring on Earth or in the heavens, you can rely on two […]