Why does time flow in one direction? Why do humans perceive time so differently than it really is? Is there really a difference between the present, the past, and the future? These books explore these questions and more.
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Why is math the universal language? NASA’s Michelle Thaller solves that one.
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Small sample size? No underlying theory? Conflicts with all other results? It checks all the boxes. There’s nothing that’s special, on a cosmic scale, about our place in the Universe. Not […]
The world of particle physics sure does have surprises, even for the most educated of physicists out there. If you ever take a visit to the physical site of CERN, where […]
The whole should equal the sum of its parts, but doesn’t. Here’s why. The whole is equal to the sum of its constituent parts. That’s how everything works, from galaxies to […]
How do you know you are real? A classic paper by philosopher Nick Bostrom argues you are likely a simulation.
Some claim that inflation isn’t science, but it sure has made some incredibly successful scientific predictions. So, you want to know how the Universe began? You’re not alone. Every other […]
It was so well-motivated and compelling. But the particles never appeared. Every so often, an idea comes along in theoretical physics that’s undeniably profound. When a single idea can solve […]
With the discovery of the Higgs boson, the Standard Model is now complete. Can we be sure there isn’t another generation of particles out there? The Universe, at a fundamental level, […]
The origin story for our Universe got a major revision nearly 40 years ago. Time to catch up. 13.8 billion years ago, all the matter and energy contained within our Universe […]
If all forms of energy experience gravitation, then why does dark energy make the expansion accelerate instead of slow down? Of all the revolutionary discoveries that we’ve made about the Universe, […]
It’s one of cosmology’s biggest unsolved mysteries. The strongest argument against it may have just evaporated. The ultimate goal of cosmology contains the greatest ambition of any scientific field: to […]
It really is the ‘glue’ that holds the Universe together, enabling structures like our own galaxy to form in the first place. One of the most puzzling and counterintuitive facts about […]
Jim Peebles, Michel Mayor and Didier Queloz just won the 2019 Nobel Prize in Physics. It couldn’t be more well-deserved. Every year, the Nobel Prize reminds all of humanity to […]
After the Big Bang, merging supermassive black holes are unparalleled. Here’s how we’ll find the first one. Last week, NASA’s Chandra X-ray observatory made history by announcing the most energetic explosive […]
When you emit gravitational waves, they have to pass through the Universe. But do they gravitate, too? When you travel through the Universe, it isn’t just a free ride through […]
What can the beauty of autumn’s colors teach us about mortality?
Two new papers say everything we knew about black holes was wrong.
When you zoom far enough out, our universe has a very unusual structure.
If particles weren’t also waves, the Sun would never achieve nuclear fusion. Without quantum mechanics, life on Earth would never have come to exist. The greatest source of newly-produced energy in […]
As the fabled star continues to dim, the world holds its breath and hopes. Here’s what’s in store when the fateful day arrives. The stars in the night sky, normally static […]
Scientific surprises are often how science advances. But more often than not, they’re just bad science. When you’re a scientist, getting an unexpected result can be a double-edged sword. The best […]
Maybe, but that probably doesn’t mean what you think it does. Of all the unsolved puzzles in the Universe, perhaps the most confounding is the dark matter problem. If we look […]
A classic experiment gets an update that contradicts key assumptions of quantum mechanics.
On September 27, 1972, scientists performed the first test of Bell’s inequality. God does play dice with the Universe, after all. One of the most puzzling and counterintuitive aspects of quantum […]
Dark matter is perhaps the most mysterious substance in the Universe. What exactly it is, however, still eludes us. Dark matter is one of the most mysterious and yet most ubiquitous […]
Black holes are regions of extreme gravity, but dark matter barely interacts at all. Do they play well together? Black holes are some of the most extreme objects in the […]
When two black holes merge together, about 5% of their mass gets lost. Where does that information go? Do merging black holes lose information? They absolutely must, according to General […]